Change all Kconfig entries for packages in the "Bootloaders" menu to
submenus.
Currently many bootloaders and firmwares in this menu use a 'config'
keyword and thus menuconfig presents their sub-options as a flat list in
the same menu. This is not very convenient as some have a lot of
sub-options, and in (more and more common) configurations with multiple
such packages enabled the menuconfig screen becomes very crowded. Moreover
options of 'string' type don't have a visible indentation when their value
exceeds a few characters, thus making it visually hard to grasp which
package the various options belong to.
Non-bootloader packages having suboptions usually use a 'menuconfig'
keywork to have sub-options in a submenu. Do the same for packages in the
"Bootloaders" menu which have more than one sub-option.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
06dc0cc353