mx53smd: Configure the pins as GPIOs prior to using gpio_get_value

Configure the pins as GPIO prior to using gpio_get_value.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

board/freescale/mx53smd/mx53smd.c

@@ -134,6 +134,7 @@ struct fsl_esdhc_cfg esdhc_cfg[1] = {
 
 int board_mmc_getcd(u8 *cd, struct mmc *mmc)
 {
+	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
 	*cd = gpio_get_value(77); /*GPIO3_13*/
 
 	return 0;