const internal/cpu.cpuid_AVX512VNNI

2 uses

	internal/cpu (current package)
		cpu_x86.go#L32: 	cpuid_AVX512VNNI      = 1 << 11
		cpu_x86.go#L190: 		X86.HasAVX512VNNI = isSet(ecx7, cpuid_AVX512VNNI)