cpu_map: Add TAA_NO bit for IA32_ARCH_CAPABILITIES MSR

CVE-2019-11135

CPUs with TAA_NO bit of IA32_ARCH_CAPABILITIES MSR set to 1 are not
vulnerable to TSX Asynchronous Abort and passing this bit to a guest
may avoid unnecessary mitigations.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/cpu_map/x86_features.xml

@@ -502,4 +502,7 @@
   <feature name='mds-no'>
     <msr index='0x10a' edx='0x00000000' eax='0x00000020'/>
   </feature>
+  <feature name='taa-no'>
+    <msr index='0x10a' edx='0x00000000' eax='0x00000100'/>
+  </feature>
 </cpus>