spice: add qxl vgabios binary.

Just compiled from vgabios git repo @ git.qemu.org,
copyed over and committed.  Also added to the list
of blobs in the Makefile.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Makefile

@@ -205,7 +205,7 @@ common  de-ch  es     fo  fr-ca  hu     ja  mk  nl-be      pt  sl     tr
 
 ifdef INSTALL_BLOBS
 BLOBS=bios.bin vgabios.bin vgabios-cirrus.bin \
-vgabios-stdvga.bin vgabios-vmware.bin \
+vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin \
 ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc \
 gpxe-eepro100-80861209.rom \
 pxe-e1000.bin \