tools: kwboot: Clean up usage text

Usage text was getting unwieldy and somewhat incorrect.  The
usage summary implied that some options were mutually exclusive
(e.g. -q or -s).  Clean up the summary to just include the
important ones, and include a generic "[OPTIONS]" instead.

Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
1 file changed