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/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index 1bd3dd7..e4547af 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -1,4 +1,5 @@
 #include <media/saa7146_vv.h>
+#include <linux/module.h>
 
 /****************************************************************************/
 /* resource management functions, shamelessly stolen from saa7134 driver */