Disp: Snapshot change for lahaina display driver

This snapshot change adds downstream support
for drm 5.x+(msm_lahaina branch) linux kernel.

Change-Id: Ia691c95da155a00e449c91a2f1a5b20a8e71aed4
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>

msm/dp/dp_drm.c

@@ -231,8 +231,8 @@ static void dp_bridge_post_disable(struct drm_bridge *drm_bridge)
 }
 
 static void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
-				struct drm_display_mode *mode,
-				struct drm_display_mode *adjusted_mode)
+				const struct drm_display_mode *mode,
+				const struct drm_display_mode *adjusted_mode)
 {
 	struct dp_bridge *bridge;
 	struct dp_display *dp;