mx5:Use IMX_GPIO_NR macro

Signed-off-by: Ashok Kumar Reddy <ashokkourla2000@gmail.com>
diff --git a/board/freescale/mx53smd/mx53smd.c b/board/freescale/mx53smd/mx53smd.c
index c237980..42f777b 100644
--- a/board/freescale/mx53smd/mx53smd.c
+++ b/board/freescale/mx53smd/mx53smd.c
@@ -135,8 +135,8 @@
 int board_mmc_getcd(struct mmc *mmc)
 {
 	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
-	gpio_direction_input(77);
-	return !gpio_get_value(77); /* GPIO3_13 */
+	gpio_direction_input(IMX_GPIO_NR(3, 13));
+	return !gpio_get_value(IMX_GPIO_NR(3, 13));
 }
 
 int board_mmc_init(bd_t *bis)