drm/i915: Fix misleading driver debug message

Stop claiming that UMS support is disabled when it's not actually
supported anymore.

Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1466763836-27772-1-git-send-email-frank.binns@imgtec.com
Link: http://patchwork.freedesktop.org/patch/msgid/1466773227-7994-13-git-send-email-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/i915_drv.c

@@ -3465,7 +3465,7 @@ static int __init i915_init(void)
 
 	if (!(driver.driver_features & DRIVER_MODESET)) {
 		/* Silently fail loading to not upset userspace. */
-		DRM_DEBUG_DRIVER("KMS and UMS disabled.\n");
+		DRM_DEBUG_DRIVER("KMS disabled.\n");
 		return 0;
 	}