ath9k: move ath9k_init_channels_rates to common-init

and rename it to ath9k_cmn_init_channels_rates.
sbands are move to ath_common as well.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 56d5599..d239acc 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -163,6 +163,7 @@
 	bool bt_ant_diversity;
 
 	int last_rssi;
+	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 };
 
 struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,