dv: fix first frame garbage with dual dv [1/1]

PD#SWPL-19310

Problem:
When playing dual layer dv streaming, first frame
may display green. BL layer is out of sync with EL
layer.

Solution:
Fix the case which will toggle one more EL vframe incorrecly.

Verify:
Verified by AC214

Change-Id: I13b4a05716e800b8d25564a82d1d34d7198bf467
Signed-off-by: Brian Zhu <brian.zhu@amlogic.com>
(cherry picked from commit d3b7a081f3b744a7a24a84bbf74865445651d4b4)

drivers/amlogic/media/enhancement/amdolby_vision/amdolby_vision.c

@@ -7256,6 +7256,9 @@ int dolby_vision_process(
 				     video_turn_off ? "off" : "on",
 				     is_graphics_output_off() ? "off" : "on",
 				     vf, toggle_mode);
+		/* do not toggle a new el vf */
+		if (toggle_mode == 1)
+			toggle_mode = 0;
 		if (vf &&
 		    !dolby_vision_parse_metadata(
 		    vf, toggle_mode, false, false)) {