cpu_map: Add script to sync from QEMU i386 cpu models

cpu_map: Add script to sync from QEMU i386 cpu models

This script is intended to help in synchronizing i386 QEMU cpu model
definitions with libvirt.

As the QEMU cpu model definitions are post processed by QEMU and not
meant to be consumed by third parties directly, parsing this
information is imperfect. Additionally, the libvirt models contain
information that cannot be generated from the QEMU data, preventing
fully automated usage. The output should nevertheless be helpful for
a human in determining potentially interesting changes.

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>