disp: msm: sde: reduce log level for invalid encoder master

Reduce the log level from error to debug for invalid
master encoder in encoder restore path during idle
power-collapse. This would avoid unnecessary logging
when concurrent writeback gets enabled after a
power-collapse event, the restore happens based on
encoder_mask attached in the crtc before the actual
enable call for the cwb encoder.

Change-Id: I54cd7de62f1a9030f68a963c8ed27ff098302e04
Signed-off-by: Veera Sundaram Sankaran <[email protected]>

msm/sde/sde_encoder.c

@@ -3015,7 +3015,7 @@ static void _sde_encoder_virt_enable_helper(struct drm_encoder *drm_enc)
 
 	sde_enc = to_sde_encoder_virt(drm_enc);
 	if (!sde_enc || !sde_enc->cur_master) {
-		SDE_ERROR("invalid sde encoder/master\n");
+		SDE_DEBUG("invalid sde encoder/master\n");
 		return;
 	}