target/i386: add avx-vnni-int16 feature

AVX-VNNI-INT16 (CPUID[EAX=7,ECX=1).EDX[10]) is supported by Clearwater
Forest processor, add it to QEMU as it does not need any specific
enablement.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386/cpu.c

@@ -1131,7 +1131,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .feat_names = {
             NULL, NULL, NULL, NULL,
             "avx-vnni-int8", "avx-ne-convert", NULL, NULL,
-            "amx-complex", NULL, NULL, NULL,
+            "amx-complex", NULL, "avx-vnni-int16", NULL,
             NULL, NULL, "prefetchiti", NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,