sh: mach-highlander/psw.c is tristate and should use module.h

This file is controlled by a tristate Kconfig option, and hence
needs to include module.h so that it can get module_init() once
we relocate it from init.h into module.h in the future.

Note that module_exit() appears to be missing from the driver, so
it is questionable whether it would actually work for a removal
and reload cycle if it was configured for a modular build.

Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

arch/sh/boards/mach-highlander/psw.c

@@ -10,7 +10,7 @@
  * for more details.
  */
 #include <linux/io.h>
-#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <mach/highlander.h>