grub2 security, bug fix, and enhancement update

[2.02-0.29.0.1]

• Fix comparison in patch for 18504756
• Remove symlink to grub environment file during uninstall on EFI platforms
  [bug 19231481]
• update Oracle Linux certificates (Alexey Petrenko)
• Put ‘with’ in menuentry instead of ‘using’ [bug 18504756]
• Use different titles for UEK and RHCK kernels [bug 18504756]
  [2.02-0.29]
• Fix DHCP6 timeouts due to failed network stack once more.
  Resolves: rhbz#1267139
  [2.02-0.28]
• Once again, rebuild for the right build target.
  Resolves: CVE-2015-5281
  [2.02-0.27]
• Remove multiboot and multiboot2 modules from the .efi builds; they
  should never have been there.
  Resolves: CVE-2015-5281
  [2.02-0.26]
• Be more aggressive about trying to make sure we use the configured SNP
  device in UEFI.
  Resolves: rhbz#1257475
  [2.02-0.25]
• Force file sync to disk on ppc64le machines.
  Resolves: rhbz#1212114
  [2.02-0.24]
• Undo 0.23 and fix it a different way.
  Resolves: rhbz#1124074
  [2.02-0.23]
• Reverse kernel sort order so they’re displayed correctly.
  Resolves: rhbz#1124074
  [2.02-0.22]
• Make upgrades work reasonably well with grub2-setpassword .
  Related: rhbz#985962
  [2.02-0.21]
• Add a simpler grub2 password config tool
  Related: rhbz#985962
• Some more coverity nits.
  [2.02-0.20]
• Deal with some coverity nits.
  Related: rhbz#1215839
  Related: rhbz#1124074
  [2.02-0.19]
• Rebuild for Aarch64
• Deal with some coverity nits.
  Related: rhbz#1215839
  Related: rhbz#1124074
  [2.02-0.18]
• Update for an rpmdiff problem with one of the man pages.
  Related: rhbz#1124074