[YCONFIG] Use common variable for bootloader features
Use BOOTLOADER_EXTRA_FEATURES
to add all the features of the
bootloader selected. This variable will be used as such:
UBOOT_ADDONS:append = " ${BOOTLOADER_EXTRA_FEATURES}"
GRUB_ADDONS:append = " ${BOOTLOADER_EXTRA_FEATURES}"
depending on the used bootloader.
This is needed to simplify the *-features.conf
features cross-check
done at configurator level.
Signed-off-by: Nicola Sparnacci nicola.sparnacci@seco.com