drm: omapdrm: Clean up #include's

Use the <...> include style instead of "..." for DRM headers and sort
the headers alphabetically to ease detection of duplicates.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index e81fbc0..dbd30469 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -17,11 +17,11 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "omap_drv.h"
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
 
-#include "drm_crtc_helper.h"
-#include "drm_fb_helper.h"
 #include "omap_dmm_tiler.h"
+#include "omap_drv.h"
 
 #define DRIVER_NAME		MODULE_NAME
 #define DRIVER_DESC		"OMAP DRM"