ath9k: make use ath9k_hw_wait int ath9k_hw_reset_tsf

We have a dedicated function for this kind of checks, use that
instead of duplicating the code.

Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2 files changed