drivers/media: Add module.h to all files using it implicitly

A pending cleanup will mean that module.h won't be implicitly
everywhere anymore.  Make sure the modular drivers in clocksource
are actually calling out for <module.h> explicitly in advance.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/media/rc/keymaps/rc-npgtech.c b/drivers/media/rc/keymaps/rc-npgtech.c
index 4aa588b..65d0cfc 100644
--- a/drivers/media/rc/keymaps/rc-npgtech.c
+++ b/drivers/media/rc/keymaps/rc-npgtech.c
@@ -11,6 +11,7 @@
  */
 
 #include <media/rc-map.h>
+#include <linux/module.h>
 
 static struct rc_map_table npgtech[] = {
 	{ 0x1d, KEY_SWITCHVIDEOMODE },	/* switch inputs */