omap3evm: Add mux settings for keypad

This patch sets SYS_NIRQ for keypad input. It also
sets the same as a wakeup event from OFF mode.

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 45227f3..3b473cf 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -647,6 +647,10 @@
 
 #ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
+	OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
+				OMAP_PIN_OFF_INPUT_PULLUP |
+				OMAP_PIN_OFF_WAKEUPENABLE),
+
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };
 #else