Rename rbd-invalid.xml to rbd-no-colon.xml

Files ending in -invalid.xml are expected to violate the
XML schema check. The RBD file does not so must have a
different filename.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

tests/qemuxml2argvtest.c

@@ -531,7 +531,7 @@ mymain(void)
             QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
     DO_TEST("disk-drive-network-rbd-ipv6",
             QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
-    DO_TEST_FAILURE("disk-drive-network-rbd-invalid",
+    DO_TEST_FAILURE("disk-drive-network-rbd-no-colon",
                     QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_FORMAT);
     DO_TEST("disk-drive-no-boot",
             QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_BOOTINDEX);