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/apalis_imx6_nospl_it_defconfig b/configs/apalis_imx6_nospl_it_defconfig
index 8eea132..65a868d 100644
--- a/configs/apalis_imx6_nospl_it_defconfig
+++ b/configs/apalis_imx6_nospl_it_defconfig
@@ -38,6 +38,7 @@
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DWC_AHSATA=y
+CONFIG_FSL_ESDHC=y
 CONFIG_PHYLIB=y
 CONFIG_PHY_MICREL=y
 CONFIG_PHY_MICREL_KSZ90X1=y