When the primary card restores controls, all other cards
in the card group should do this operation, too.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Implement boot parameter management for multi-card synchronization.
Add boot_params.c with read/write functions for Boot control element,
card group configuration file support, and validity checking.
Extend init_ucm.c with boot/restore logic and card state handling.
Add -G (group-file) and -m (force-ucm-restore) command line options.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
