ath9k: fix 802.11g conformance test limit typo

802.11g is in 2 ghz band, not 5 ghz.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/regd.c

@@ -507,7 +507,7 @@ u32 ath9k_regd_get_ctl(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (IS_CHAN_B(chan))
 		ctl = ah->regulatory.regpair->reg_2ghz_ctl | CTL_11B;
 	else if (IS_CHAN_G(chan))
-		ctl = ah->regulatory.regpair->reg_5ghz_ctl | CTL_11G;
+		ctl = ah->regulatory.regpair->reg_2ghz_ctl | CTL_11G;
 	else
 		ctl = ah->regulatory.regpair->reg_5ghz_ctl | CTL_11A;