Move this option to Kconfig and tidy up existing uses.
Signed-off-by: Simon Glass <sjg@chromium.org>
CONFIG_TARGET_AM335X_EVM=y
CONFIG_SPL_STACK_R_ADDR=0x82000000
CONFIG_FIT=y
-CONFIG_SYS_EXTRA_OPTIONS="NAND,SPL_USBETH_SUPPORT"
+CONFIG_SYS_EXTRA_OPTIONS="NAND"
CONFIG_VERSION_VARIABLE=y
CONFIG_SPL=y
CONFIG_SPL_STACK_R=y
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_SPL_MUSB_NEW_SUPPORT=y
CONFIG_SPL_NET_SUPPORT=y
+CONFIG_SPL_USBETH_SUPPORT=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set