mx53evk: Configure the pins as GPIOs prior to using gpio_get_value

Configure the pins as GPIO prior to using gpio_get_value.

Cc: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <jason.hui@linaro.org>

board/freescale/mx53evk/mx53evk.c

@@ -212,6 +212,9 @@ int board_mmc_getcd(u8 *cd, struct mmc *mmc)
 {
 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 
+	mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
+	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
+
 	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
 		*cd = gpio_get_value(77); /*GPIO3_13*/
 	else