x86/microcode: Fix Entrysign revision check for Zen1/Naples

commit 876f0d4 upstream.

... to match AMD's statement here:

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html

Fixes: 50cef76 ("x86/microcode/AMD: Load only SHA256-checksummed patches")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/20251020144124.2930784-1-andrew.cooper3@citrix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3a25640814ff8867637037590538b9cd6386e526)
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>

Author: andyhhp

arch/x86/kernel/cpu/microcode/amd.c

@@ -164,7 +164,7 @@ static int cmp_id(const void *key, const void *elem)
 static bool need_sha_check(u32 cur_rev)
 {
 	switch (cur_rev >> 8) {
-	case 0x80012: return cur_rev <= 0x800126f; break;
+	case 0x80012: return cur_rev <= 0x8001277; break;
 	case 0x80082: return cur_rev <= 0x800820f; break;
 	case 0x83010: return cur_rev <= 0x830107c; break;
 	case 0x86001: return cur_rev <= 0x860010e; break;