Add description for -W <hwrev> option into usage output of mktplinkfw.
Signed-off-by: yousong <yszhou4tech@gmail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 36497
" -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
" -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
" -H <hwid> use hardware id specified with <hwid>\n"
+" -W <hwrev> use hardware revision specified with <hwrev>\n"
" -F <id> use flash layout specified with <id>\n"
" -k <file> read kernel image from the file <file>\n"
" -r <file> read rootfs image from the file <file>\n"