drm/rockchip: ebc_dev: release version v6.13

fix pvi regal waveform data
can force full under overlay

Type: Fix
Redmine ID: #487718, #494878
Associated modifications: N/A
Test: N/A

Change-Id: I78a6689bacf7c289f4988ab15445d252dc6939c0
Signed-off-by: Zorro Liu <lyx@rock-chips.com>

drivers/gpu/drm/rockchip/ebc-dev/ebc_dev.h

@@ -111,7 +111,7 @@ struct ebc_buf_info {
 	int win_y2;
 	int width_mm;
 	int height_mm;
-	int dropable;	// 1: buf can not be drop by ebc, 0: buf can drop by ebc 2: regal buf, can not be drop by ebc
+	int dropable;	//no use
 	char tid_name[16];
 	int dma_buf_fd;
 };