microcode_ctl security, bug fix and enhancement update

[2:2.1-73.9.0.1]

• for Intel, do not trigger load if on-disk microcode is not an update [Orabug: 30634727]
• set early_microcode=‘no’ in virtualized guests to avoid early load bugs [Orabug: 30618736]
• ensure late loading fixes are present on 4.1.12-* and 4.14.35-*
• enable early and late load for 5.4.17-*
• enable early loading for 06-4f-01 caveat
• remove no longer appropriate caveats for 06-2d-07 and 06-55-04
  [2:2.1-73.9]
• Update Intel CPU microcode to microcode-20210525 release, addresses
  CVE-2020-24489, CVE-2020-24511, CVE-2020-24512, and CVE-2020-24513
  (#1962659, #1962709, #1962729, #1962675):
  • Addition of 06-55-05/0xb7 (CLX-SP A0) microcode at revision 0x3000010;
  • Addition of 06-6a-05/0x87 (ICX-SP C0) microcode at revision 0xc0002f0;
  • Addition of 06-6a-06/0x87 (ICX-SP D0) microcode at revision 0xd0002a0;
  • Addition of 06-86-04/0x01 (SNR B0) microcode at revision 0xb00000f;
  • Addition of 06-86-05/0x01 (SNR B1) microcode (in intel-ucode/06-86-04)
    at revision 0xb00000f;
  • Addition of 06-86-04/0x01 (SNR B0) microcode (in intel-ucode/06-86-05)
    at revision 0xb00000f;
  • Addition of 06-86-05/0x01 (SNR B1) microcode at revision 0xb00000f;
  • Addition of 06-8c-02/0xc2 (TGL-R C0) microcode at revision 0x16;
  • Addition of 06-8d-01/0xc2 (TGL-H R0) microcode at revision 0x2c;
  • Addition of 06-96-01/0x01 (EHL B1) microcode at revision 0x11;
  • Addition of 06-9c-00/0x01 (JSL A0/A1) microcode at revision 0x1d;
  • Addition of 06-a7-01/0x02 (RKL-S B0) microcode at revision 0x40;
  • Update of 06-4e-03/0xc0 (SKL-U/U 2+3e/Y D0/K1) microcode (in
    intel-06-4e-03/intel-ucode/06-4e-03) from revision 0xe2 up to 0xea;
  • Update of 06-4f-01/0xef (BDX-E/EP/EX/ML B0/M0/R0) microcode (in
    intel-06-4f-01/intel-ucode/06-4f-01) from revision 0xb000038 up
    to 0xb00003e;
  • Update of 06-55-04/0xb7 (SKX-D/SP/W/X H0/M0/M1/U0) microcode (in
    intel-06-55-04/intel-ucode/06-55-04) from revision 0x2006a0a up
    to 0x2006b06;
  • Update of 06-5e-03/0x36 (SKL-H/S/Xeon E3 N0/R0/S0) microcode (in
    intel-06-5e-03/intel-ucode/06-5e-03) from revision 0xe2 up to 0xea;
  • Update of 06-8c-01/0x80 (TGL-UP3/UP4 B1) microcode (in
    intel-06-8c-01/intel-ucode/06-8c-01) from revision 0x68 up to 0x88;
  • Update of 06-8e-09/0x10 (AML-Y 2+2 H0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xde up
    to 0xea;
  • Update of 06-8e-09/0xc0 (KBL-U/U 2+3e/Y H0/J1) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xde up
    to 0xea;
  • Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0, KBL-R Y0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0a) from revision 0xe0 up
    to 0xea;
  • Update of 06-8e-0b/0xd0 (WHL-U W0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0b) from revision 0xde up
    to 0xea;
  • Update of 06-8e-0c/0x94 (AML-Y 4+2 V0, CML-U 4+2 V0, WHL-U V0)
    microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0c) from
    revision 0xde up to 0xea;
  • Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-09) from revision 0xde up
    to 0xea;
  • Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0a) from revision 0xde up
    to 0xea;
  • Update of 06-9e-0b/0x02 (CFL-E/H/S B0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0b) from revision 0xde up
    to 0xea;
  • Update of 06-9e-0c/0x22 (CFL-H/S/Xeon E P0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0c) from revision 0xde up
    to 0xea;
  • Update of 06-9e-0d/0x22 (CFL-H/S/Xeon E R0) microcode (in
    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0d) from revision 0xde up
    to 0xea;
  • Update of 06-3f-02/0x6f (HSX-E/EN/EP/EP 4S C0/C1/M1/R2) microcode
    from revision 0x44 up to 0x46;
  • Update of 06-3f-04/0x80 (HSX-EX E0) microcode from revision 0x16 up
    to 0x19;
  • Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000159
    up to 0x100015b;
  • Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x4003006
    up to 0x4003102;
  • Update of 06-55-07/0xbf (CLX-SP/W/X B1/L1) microcode from revision
    0x5003006 up to 0x5003102;
  • Update of 06-55-0b/0xbf (CPX-SP A1) microcode from revision 0x700001e
    up to 0x7002302;
  • Update of 06-56-03/0x10 (BDX-DE V2/V3) microcode from revision
    0x7000019 up to 0x700001b;
  • Update of 06-56-04/0x10 (BDX-DE Y0) microcode from revision 0xf000017
    up to 0xf000019;
  • Update of 06-56-05/0x10 (BDX-NS A0/A1, HWL A1) microcode from revision
    0xe00000f up to 0xe000012;
  • Update of 06-5c-09/0x03 (APL D0) microcode from revision 0x40 up
    to 0x44;
  • Update of 06-5c-0a/0x03 (APL B1/F1) microcode from revision 0x1e up
    to 0x20;
  • Update of 06-5f-01/0x01 (DNV B0) microcode from revision 0x2e up
    to 0x34;
  • Update of 06-7a-01/0x01 (GLK B0) microcode from revision 0x34 up
    to 0x36;
  • Update of 06-7a-08/0x01 (GLK-R R0) microcode from revision 0x18 up
    to 0x1a;
  • Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0xa0
    up to 0xa6;
  • Update of 06-8a-01/0x10 (LKF B2/B3) microcode from revision 0x28 up
    to 0x2a;
  • Update of 06-a5-02/0x20 (CML-H R1) microcode from revision 0xe0 up
    to 0xea;
  • Update of 06-a5-03/0x22 (CML-S 6+2 G1) microcode from revision 0xe0
    up to 0xea;
  • Update of 06-a5-05/0x22 (CML-S 10+2 Q0) microcode from revision 0xe0
    up to 0xec;
  • Update of 06-a6-00/0x80 (CML-U 6+2 A0) microcode from revision 0xe0
    up to 0xe8;
  • Update of 06-a6-01/0x80 (CML-U 6+2 v2 K0) microcode from revision
    0xe0 up to 0xea.