minstrel_ht: fix updating rate with best probability

The throughput should be considered when updating rate
with best probability.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed