microcode_ctl security update

2:2.1-73.24.0.20250512 - update microcode bundle to 20250512 Orabug: 38139038 2:2.1-73.23.0.20250211 - update microcode bundle to 20250211 Orabug: 37670820 - drop releasenote.md file 2:2.1-73.20.0.1 - don't bother calling dracut if virtualized Orabug: 35702409 - also rebuild initramfs for...