drm/i915: Remove extra "ring" from error message

The ring names already have "ring" in it.

CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_irq.c

@@ -2519,7 +2519,7 @@ void i915_hangcheck_elapsed(unsigned long data)
 
 	for_each_ring(ring, dev_priv, i) {
 		if (ring->hangcheck.score > FIRE) {
-			DRM_ERROR("%s on %s ring\n",
+			DRM_ERROR("%s on %s\n",
 				  stuck[i] ? "stuck" : "no progress",
 				  ring->name);
 			rings_hung++;