x86/cpufeatures: Remove "AMD" from the comments to the AMD-specific leaf

0x8000001f.EAX is an AMD-specific leaf so there's no need to have "AMD"
in almost every feature's comment. Zap it and make the text more
readable this way.

No functional changes.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20241122210707.12742-1-bp@kernel.org

arch/x86/include/asm/cpufeatures.h

@@ -443,14 +443,14 @@
 #define X86_FEATURE_SPEC_CTRL_SSBD	(18*32+31) /* Speculative Store Bypass Disable */
 
 /* AMD-defined memory encryption features, CPUID level 0x8000001f (EAX), word 19 */
-#define X86_FEATURE_SME			(19*32+ 0) /* "sme" AMD Secure Memory Encryption */
-#define X86_FEATURE_SEV			(19*32+ 1) /* "sev" AMD Secure Encrypted Virtualization */
+#define X86_FEATURE_SME			(19*32+ 0) /* "sme" Secure Memory Encryption */
+#define X86_FEATURE_SEV			(19*32+ 1) /* "sev" Secure Encrypted Virtualization */
 #define X86_FEATURE_VM_PAGE_FLUSH	(19*32+ 2) /* VM Page Flush MSR is supported */
-#define X86_FEATURE_SEV_ES		(19*32+ 3) /* "sev_es" AMD Secure Encrypted Virtualization - Encrypted State */
-#define X86_FEATURE_SEV_SNP		(19*32+ 4) /* "sev_snp" AMD Secure Encrypted Virtualization - Secure Nested Paging */
+#define X86_FEATURE_SEV_ES		(19*32+ 3) /* "sev_es" Secure Encrypted Virtualization - Encrypted State */
+#define X86_FEATURE_SEV_SNP		(19*32+ 4) /* "sev_snp" Secure Encrypted Virtualization - Secure Nested Paging */
 #define X86_FEATURE_V_TSC_AUX		(19*32+ 9) /* Virtual TSC_AUX */
-#define X86_FEATURE_SME_COHERENT	(19*32+10) /* AMD hardware-enforced cache coherency */
-#define X86_FEATURE_DEBUG_SWAP		(19*32+14) /* "debug_swap" AMD SEV-ES full debug state swap support */
+#define X86_FEATURE_SME_COHERENT	(19*32+10) /* hardware-enforced cache coherency */
+#define X86_FEATURE_DEBUG_SWAP		(19*32+14) /* "debug_swap" SEV-ES full debug state swap support */
 #define X86_FEATURE_SVSM		(19*32+28) /* "svsm" SVSM present */
 
 /* AMD-defined Extended Feature 2 EAX, CPUID level 0x80000021 (EAX), word 20 */