disp: msm: dp: use sde_drm.h shared header from techpack path

Update sde_drm.h header to use the display techpack path for
kernel-5.4.

Change-Id: I2b7dcbbde8128eece7a2a8a652f9f7c427b38110
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

msm/dp/dp_display.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
  */
 
 #ifndef _DP_DISPLAY_H_
@@ -8,7 +8,7 @@
 
 #include <linux/list.h>
 #include <drm/drmP.h>
-#include <drm/msm_drm.h>
+#include <drm/sde_drm.h>
 
 #include "dp_panel.h"