ARCH/X86: compile error fix

[arun-chandran-edarath]

What?

Fixes the below compile error with gcc 15.1

CC vfs/base/libucs_la-vfs_obj.lo CC vfs/base/libucs_la-vfs_cb.lo arch/x86_64/cpu.c:502:5: error: conflicting types for ‘ucs_arch_get_cpu_flag’ due to enum/integer mismatch; have ‘int(void)’ [-Werror=enum-int-mismatch] 502 | int ucs_arch_get_cpu_flag() | ^~~~~~~~~~~~~~~~~~~~~ In file included from src/ucs/arch/cpu.h:106, from arch/x86_64/cpu.c:15:

src/ucs/arch/x86_64/cpu.h:54:16: note: previous declaration of ‘ucs_arch_get_cpu_flag’ with type ‘ucs_cpu_flag_t(void)’ {aka ‘enum ucs_cpu_flag(void)’} 54 | ucs_cpu_flag_t ucs_arch_get_cpu_flag() UCS_F_NOOPTIMIZE; | ^~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors