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/sama5d4_xplained_spiflash_defconfig b/configs/sama5d4_xplained_spiflash_defconfig
index 9ba5bd7..6774082 100644
--- a/configs/sama5d4_xplained_spiflash_defconfig
+++ b/configs/sama5d4_xplained_spiflash_defconfig
@@ -4,6 +4,7 @@
CONFIG_SPL_GPIO_SUPPORT=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_FIT=y
CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4,SYS_USE_SERIALFLASH"
CONFIG_BOOTDELAY=3