ath9k: fix beaconing for mesh interfaces

Mesh beaconing on ath9k was broken by this commit:

commit 4801416c
Author: Ben Greear <greearb@candelatech.com>
Date:   Sat Jan 15 19:13:48 2011 +0000

This patch assigns the right opmode when the device is used in mesh
mode.

Reported-by: Fabrice Deyber fabricedeyber@agilemesh.com
Signed-off-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/main.c

@@ -1385,7 +1385,9 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
 		ath9k_hw_set_tsfadjust(ah, 0);
 		sc->sc_flags &= ~SC_OP_TSF_RESET;
 
-		if (iter_data.nwds + iter_data.nmeshes)
+		if (iter_data.nmeshes)
+			ah->opmode = NL80211_IFTYPE_MESH_POINT;
+		else if (iter_data.nwds)
 			ah->opmode = NL80211_IFTYPE_AP;
 		else if (iter_data.nadhocs)
 			ah->opmode = NL80211_IFTYPE_ADHOC;