cli: Add --features hyperv.xmm_input.state=on/off

Signed-off-by: Lin Ma <lma@suse.de>

tests/data/cli/compare/virt-install-many-devices.xml

@@ -154,6 +154,7 @@
       <ipi state="on"/>
       <evmcs state="on"/>
       <avic state="on"/>
+      <xmm_input state="on"/>
     </hyperv>
     <vmport state="off"/>
     <kvm>

tests/test_cli.py

@@ -581,6 +581,7 @@ hyperv.tlbflush.state=on,\
 hyperv.ipi.state=on,\
 hyperv.evmcs.state=on,\
 hyperv.avic.state=on,\
+hyperv.xmm_input.state=on,\
 kvm.pv-ipi.state=on,\
 msrs.unknown=ignore