Convert to use fsl_esdhc_imx for i.MX platforms

Converted to use fsl_esdhc_imx for i.MX platforms.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Tested-by: Steffen Dirkwinkel <s.dirkwinkel@beckhoff.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Martyn Welch <martyn.welch@collabora.com>
Acked-by: Jason Liu <Jason.hui.liu@nxp.com>
diff --git a/configs/mx6dlarm2_defconfig b/configs/mx6dlarm2_defconfig
index 35f8183..866e0b5 100644
--- a/configs/mx6dlarm2_defconfig
+++ b/configs/mx6dlarm2_defconfig
@@ -26,7 +26,7 @@
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_ENV_IS_IN_MMC=y
-CONFIG_FSL_ESDHC=y
+CONFIG_FSL_ESDHC_IMX=y
 CONFIG_MII=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y