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/k2e_evm_defconfig b/configs/k2e_evm_defconfig
index 0be360c..ff19dd8 100644
--- a/configs/k2e_evm_defconfig
+++ b/configs/k2e_evm_defconfig
@@ -5,6 +5,7 @@
CONFIG_TARGET_K2E_EVM=y
CONFIG_SPL_I2C_SUPPORT=y
CONFIG_SPL_POWER_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_DEFAULT_DEVICE_TREE="k2e-evm"
CONFIG_OF_BOARD_SETUP=y
CONFIG_VERSION_VARIABLE=y