Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c
index 576f1b2..83ee86f 100644
--- a/drivers/gpu/drm/gma500/gem.c
+++ b/drivers/gpu/drm/gma500/gem.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  psb GEM interface
  *
  * Copyright (c) 2011, Intel Corporation.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
  * Authors: Alan Cox
  *
  * TODO:
@@ -23,10 +11,11 @@
  *		accelerated operations on a GEM object)
  */
 
-#include <drm/drmP.h>
+#include <linux/pagemap.h>
+
 #include <drm/drm.h>
-#include <drm/gma_drm.h>
 #include <drm/drm_vma_manager.h>
+
 #include "psb_drv.h"
 
 void psb_gem_free_object(struct drm_gem_object *obj)