boot-order-test: Cover -boot once in ppc tests

Cc: Andreas Färber <afaerber@suse.de>
Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-7-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

tests/boot-order-test.c

@@ -102,6 +102,7 @@ static void test_powermac_boot_order(void)
         test_powermac_with_args(newworld, "", 'c', 'c');
         test_powermac_with_args(newworld, "-boot c", 'c', 'c');
         test_powermac_with_args(newworld, "-boot d", 'd', 'd');
+        test_powermac_with_args(newworld, "-boot once=d,order=c", 'd', 'c');
     }
 }