Blspec is a consumer of the flexible bootargs mechanism, so it should
depend on it rather than select it.
Fixes:
warning: (BLSPEC && DEFAULT_ENVIRONMENT_GENERIC_NEW) selects FLEXIBLE_BOOTARGS
which has unmet direct dependencies (COMMAND_SUPPORT && CMD_GLOBAL)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>