block: Fix files that are modules and hence need module.h

We want to remove the implicit everywhere presence of module.h
so fix up the people relying on that implicit presence in advance.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index b3bdb8a..cbd735b 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -10,6 +10,7 @@
 
 #include <linux/blkdev.h>
 #include <linux/delay.h>
+#include <linux/module.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>