boot command: Make verbose/dryrun options work again
Fixes: bc94fb3 bootm: Initialize bootm_data defaults in single place
bootm_data_init_defaults() must be called before filling in the values
from the commandline options, otherwise the values will be overwritten
in bootm_data_init_defaults().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>