ARM: OMAP: Add 3430 gpio support

This patch adds 3430 gpio support.

It also contains a fix by Paul Walmsley <paul@pwsan.com> to use the
correct clock names for OMAP3430.
Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

include/asm-arm/arch-omap/gpio.h

@@ -62,6 +62,8 @@
 #define OMAP_MPUIO_LATCH		0x34
 #endif
 
+#define OMAP34XX_NR_GPIOS		6
+
 #define OMAP_MPUIO(nr)		(OMAP_MAX_GPIO_LINES + (nr))
 #define OMAP_GPIO_IS_MPUIO(nr)	((nr) >= OMAP_MAX_GPIO_LINES)