KVM: emulate: fix harmless typo in MMX decoding
KVM: emulate: fix harmless typo in MMX decoding

It was using the wrong member of the union.

Signed-off-by: Paolo Bonzini <69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs