Moderate: microcode_ctl security update (Oracle Linux 7)

[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 kernel-ueknano [Orabug: 35698043]
- ensure UEK also rebuilds initramfs [Orabug: 34280052]
- 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