OMAPDSS: picodlp: add missing #include <linux/module.h>

Compiling panel-picodlp.c failed with:

drivers/video/omap2/displays/panel-picodlp.c:560:12: error:
'THIS_MODULE' undeclared here (not in a function)

Add #include <linux/module.h> to get THIS_MODULE definition.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/omap2/displays/panel-picodlp.c

@@ -19,6 +19,7 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/module.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>