configs: enable eSDHC device module for P1020RDB board

Enable eSDHC device module for P1020RDB board

Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/P1020RDB-PC_SDCARD_defconfig b/configs/P1020RDB-PC_SDCARD_defconfig
index 601c7dc..b5093c2 100644
--- a/configs/P1020RDB-PC_SDCARD_defconfig
+++ b/configs/P1020RDB-PC_SDCARD_defconfig
@@ -66,3 +66,4 @@
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
+CONFIG_DM_MMC=y