This will allow the PC code to use the header, and lets us eliminate the
QEMU_INCLUDES hack inside tests/Makefile.
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>