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/P5040DS_NAND_SECURE_BOOT_defconfig b/configs/P5040DS_NAND_SECURE_BOOT_defconfig
index 6d0ce11..504405d 100644
--- a/configs/P5040DS_NAND_SECURE_BOOT_defconfig
+++ b/configs/P5040DS_NAND_SECURE_BOOT_defconfig
@@ -26,6 +26,7 @@
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
 CONFIG_DM=y
+CONFIG_FSL_ESDHC=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_NAND=y
 CONFIG_SPI_FLASH=y