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/sde/sde_rm.c

@@ -1951,7 +1951,7 @@ static void _sde_rm_release_rsvp(
 void sde_rm_release(struct sde_rm *rm, struct drm_encoder *enc, bool nxt)
 {
 	struct sde_rm_rsvp *rsvp;
-	struct drm_connector *conn;
+	struct drm_connector *conn = NULL;
 	struct msm_drm_private *priv;
 	struct sde_kms *sde_kms;
 	uint64_t top_ctrl;