treewide: Migrate CONFIG_FSL_ESDHC to Kconfig

Migrate the CONFIG_FSL_ESDHC option to Kconfig.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/configs/T4240QDS_NAND_defconfig b/configs/T4240QDS_NAND_defconfig
index c2a8439..73e15cf 100644
--- a/configs/T4240QDS_NAND_defconfig
+++ b/configs/T4240QDS_NAND_defconfig
@@ -33,6 +33,7 @@
 CONFIG_CMD_FAT=y
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_FSL_CAAM=y
+CONFIG_FSL_ESDHC=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_NAND=y
 CONFIG_SPI_FLASH=y