Makefile: Allow CONFIG_SPL_FIT_GENERATOR to be empty
At present we use the empty string to indicate that there is no FIT
generator, but this doesn't allow an individual board to undefine it.
Create a separate bool instead.
Update the config of the boards which currently have an empty string.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am43xx_evm_rtconly_defconfig b/configs/am43xx_evm_rtconly_defconfig
index 516c5c1..ae8eac0 100644
--- a/configs/am43xx_evm_rtconly_defconfig
+++ b/configs/am43xx_evm_rtconly_defconfig
@@ -11,6 +11,7 @@
CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"
CONFIG_DISTRO_DEFAULTS=y
CONFIG_SPL_LOAD_FIT=y
+# CONFIG_USE_SPL_FIT_GENERATOR is not set
# CONFIG_USE_BOOTCOMMAND is not set
CONFIG_SYS_CONSOLE_INFO_QUIET=y
# CONFIG_MISC_INIT_R is not set