x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG

The SYSCFG MSR continued being updated beyond the K8 family; drop the K8
name from it.

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/20210427111636.1207-4-brijesh.singh@amd.com
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index b649f92..433e8e4 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -858,8 +858,8 @@ static __init void svm_adjust_mmio_mask(void)
 		return;
 
 	/* If memory encryption is not enabled, use existing mask */
-	rdmsrl(MSR_K8_SYSCFG, msr);
-	if (!(msr & MSR_K8_SYSCFG_MEM_ENCRYPT))
+	rdmsrl(MSR_AMD64_SYSCFG, msr);
+	if (!(msr & MSR_AMD64_SYSCFG_MEM_ENCRYPT))
 		return;
 
 	enc_bit = cpuid_ebx(0x8000001f) & 0x3f;