drm: change drm set mode messages as DRM_DEBUG

Following drm info repeat 207 times during one hour, it's quite annoying
[ 1266.286747] [drm] TV-19: set mode NTSC 480i 0

Change from DRM_INFO to DRM_DEBUG
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_crtc_helper.c

@@ -702,7 +702,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
 		if (encoder->crtc != crtc)
 			continue;
 
-		DRM_INFO("%s: set mode %s %x\n", drm_get_encoder_name(encoder),
+		DRM_DEBUG("%s: set mode %s %x\n", drm_get_encoder_name(encoder),
 			 mode->name, mode->base.id);
 		encoder_funcs = encoder->helper_private;
 		encoder_funcs->mode_set(encoder, mode, adjusted_mode);