beagle-xm: gpio_63 fix wrong pin initialization

DM3730 CPU used on beagleboard-xm doesn't have any gpio
multiplexed with wait0 pin,
but gpio_63 multiplexed with wait1, so it looks like typo.
At current form it has no sense,
because of wait0 have no function "4".

Signed-off-by: Evgneiy A. Dushistov <dushistov@mail.ru>

board/ti/beagle/beagle.h

@@ -375,7 +375,7 @@ const omap3_sysinfo sysinfo = {
 
 #define MUX_BEAGLE_XM() \
 	MUX_VAL(CP(GPMC_NCS5),		(IDIS | PTD | EN  | M4)) /*GPIO_56*/\
-	MUX_VAL(CP(GPMC_WAIT0),		(IDIS | PTU | EN  | M4)) /*GPIO_63*/\
+	MUX_VAL(CP(GPMC_WAIT1),		(IDIS | PTU | EN  | M4)) /*GPIO_63*/\
 	MUX_VAL(CP(MMC1_DAT7),		(IDIS | PTU | EN  | M4)) /*GPIO_129*/\
 	MUX_VAL(CP(HDQ_SIO),		(IDIS | PTU | EN  | M4)) /*GPIO_170*/\
 	MUX_VAL(CP(MCBSP3_DX),		(IEN  | PTD | DIS | M4)) /*GPIO_140*/\