x86/microcode/intel: Refresh the revisions that determine old_microcode

Update the minimum expected revisions of Intel microcode based on the
microcode-20250512 (May 2025) release.

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/all/20250818190137.3525414-2-sohil.mehta%40intel.com