mmc: fsl_esdhc: add 'fsl, esdhc' into of_match table

This patch is to add 'fsl,esdhc' into of_match table to support
driver model for QorIQ eSDHC.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

drivers/mmc/fsl_esdhc.c

@@ -1027,6 +1027,7 @@ static const struct udevice_id fsl_esdhc_ids[] = {
 	{ .compatible = "fsl,imx6sl-usdhc", },
 	{ .compatible = "fsl,imx6q-usdhc", },
 	{ .compatible = "fsl,imx7d-usdhc", },
+	{ .compatible = "fsl,esdhc", },
 	{ /* sentinel */ }
 };