ath5k: store the clock rate in common data on channel changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 61da913..2193678 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1093,6 +1093,7 @@
 
 	ah->ah_current_channel = channel;
 	ah->ah_turbo = channel->hw_value == CHANNEL_T ? true : false;
+	ath5k_hw_set_clockrate(ah);
 
 	return 0;
 }