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/video/sh_vou.c b/drivers/media/video/sh_vou.c
index 6a72987..9644bd8 100644
--- a/drivers/media/video/sh_vou.c
+++ b/drivers/media/video/sh_vou.c
@@ -20,6 +20,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/videodev2.h>
+#include <linux/module.h>
 
 #include <media/sh_vou.h>
 #include <media/v4l2-common.h>