staging: r8712u: include module.h where needed

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 1bd9c37..d0029aa 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -32,6 +32,7 @@
 #include <linux/device.h>
 #include <linux/usb/ch9.h>
 #include <linux/firmware.h>
+#include <linux/module.h>
 
 #include "osdep_service.h"
 #include "drv_types.h"