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/nitrogen6s1g_defconfig b/configs/nitrogen6s1g_defconfig
index 69cd12d..b26bce4 100644
--- a/configs/nitrogen6s1g_defconfig
+++ b/configs/nitrogen6s1g_defconfig
@@ -36,7 +36,7 @@
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USB_FUNCTION_FASTBOOT=y
 CONFIG_FASTBOOT_BUF_ADDR=0x12000000
-CONFIG_FSL_ESDHC=y
+CONFIG_FSL_ESDHC_IMX=y
 CONFIG_SPI_FLASH=y
 CONFIG_SF_DEFAULT_MODE=0
 CONFIG_SF_DEFAULT_SPEED=25000000