x86/fred: Fix FRED name in comments

The patch introducing these constants predate the feature being renamed.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

xen/arch/x86/include/asm/x86-defns.h

@@ -82,7 +82,7 @@
 #define X86_CR4_PKE        0x00400000 /* enable PKE */
 #define X86_CR4_CET        0x00800000 /* Control-flow Enforcement Technology */
 #define X86_CR4_PKS        0x01000000 /* Protection Key Supervisor */
-#define X86_CR4_FRED       (_AC(1, ULL) << 32) /* Fast Return and Event Delivery */
+#define X86_CR4_FRED       (_AC(1, ULL) << 32) /* Flexible Return and Event Delivery */
 
 #define X86_CR8_VALID_MASK 0xf
 

xen/include/public/arch-x86/cpufeatureset.h

@@ -310,7 +310,7 @@ XEN_CPUFEATURE(ARCH_PERF_MON, 10*32+8) /*   Architectural Perfmon */
 XEN_CPUFEATURE(FZRM,         10*32+10) /*A  Fast Zero-length REP MOVSB */
 XEN_CPUFEATURE(FSRS,         10*32+11) /*A  Fast Short REP STOSB */
 XEN_CPUFEATURE(FSRCS,        10*32+12) /*A  Fast Short REP CMPSB/SCASB */
-XEN_CPUFEATURE(FRED,         10*32+17) /*   Fast Return and Event Delivery */
+XEN_CPUFEATURE(FRED,         10*32+17) /*   Flexible Return and Event Delivery */
 XEN_CPUFEATURE(LKGS,         10*32+18) /*   Load Kernel GS instruction */
 XEN_CPUFEATURE(WRMSRNS,      10*32+19) /*S  WRMSR Non-Serialising */
 XEN_CPUFEATURE(NMI_SRC,      10*32+20) /*   NMI-Source Reporting */