soc/amd/mendocino/cpu: use CPUID_ALL_STEPPINGS_MASK

Use CPUID_ALL_STEPPINGS_MASK as CPUID match mask to support all
Mendocino steppings that might be available in the future. Right now it
shouldn't change any behavior.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I77ea8c6162667e0a318176e62078b1f57726c10c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72850
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/mendocino/cpu.c

@@ -48,7 +48,7 @@ static struct device_operations cpu_dev_ops = {
 };
 
 static struct cpu_device_id cpu_table[] = {
-	{ X86_VENDOR_AMD, MENDOCINO_A0_CPUID, CPUID_EXACT_MATCH_MASK },
+	{ X86_VENDOR_AMD, MENDOCINO_A0_CPUID, CPUID_ALL_STEPPINGS_MASK },
 	{ 0, 0, 0 },
 };