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/colibri_imx7_defconfig b/configs/colibri_imx7_defconfig
index 4853480..d4fe57f 100644
--- a/configs/colibri_imx7_defconfig
+++ b/configs/colibri_imx7_defconfig
@@ -46,6 +46,7 @@
 CONFIG_DFU_MMC=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
+CONFIG_FSL_ESDHC=y
 CONFIG_NAND=y
 CONFIG_NAND_MXS=y
 CONFIG_MTD_UBI_FASTMAP=y