cputest: Fix cpu-cpuid.py diff command
    
    The cpuidMap in cpu-cpuid.py was created for converting old data files
    (with QEMU's feature-words bits) to the new model-expansion based data.
    When I added tests for CPU live update based on disabled/enabled feature
    lists I shamelessly used the existing cpuidMap for generating the
    *-{enabled,disabled}.xml data files. Thus any new CPUID bits which are
    not present in the original cpuidMap would be ignored. The correct thing
    to do is to use cpu_map.xml.
    
    All data files were fixed by running the following command:
    
        ./cpu-cpuid.py diff *.json
    
    Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
    Reviewed-by: Pavel Hrdina <phrdina@redhat.com>