watchdog: Add module.h to drivers/watchdog/stmp3xxx_wdt.c

This is a module and so needs module.h so that it will still build
once the implicit presence of module.h is removed.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

drivers/watchdog/stmp3xxx_wdt.c

@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
+#include <linux/module.h>
 
 #include <mach/platform.h>
 #include <mach/regs-rtc.h>