ARM: sa1111: add shutdown hook to sa1111_driver structure

Add a shutdown hook to the sa1111_driver structure to allow drivers
to be notified of system reboots and shutdowns.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/hardware/sa1111.h

@@ -548,6 +548,7 @@ struct sa1111_driver {
 	int (*remove)(struct sa1111_dev *);
 	int (*suspend)(struct sa1111_dev *, pm_message_t);
 	int (*resume)(struct sa1111_dev *);
+	void (*shutdown)(struct sa1111_dev *);
 };
 
 #define SA1111_DRV(_d)	container_of((_d), struct sa1111_driver, drv)