Convert CONFIG_SPL_SERIAL_SUPPORT to Kconfig
Move this option to Kconfig and tidy up existing uses.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/cm_fx6_defconfig b/configs/cm_fx6_defconfig
index d68bbf6..08643a0 100644
--- a/configs/cm_fx6_defconfig
+++ b/configs/cm_fx6_defconfig
@@ -6,6 +6,7 @@
CONFIG_TARGET_CM_FX6=y
CONFIG_SPL_I2C_SUPPORT=y
CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL,SPL"
CONFIG_BOOTDELAY=3