[ARM] pxa: add the missing AC97 pin configurations

Missing AC97 pin configurations are added where pxa_set_ac97_info() are
called for all pxa25x/pxa27x platforms. Where no exact configuration is
provided, use the default as in sound/arm/pxa2xx-ac97-lib.c

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/mioa701.c

@@ -137,6 +137,10 @@ static unsigned long mioa701_pin_config[] = {
 	GPIO41_FFUART_RTS,
 
 	/* Sound */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
 	GPIO89_AC97_SYSCLK,
 	MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),