ath5k: rename ath5k_hw_set_associd to _set_bssid

Although the named function also sets the aid, its main
purpose is configuring the bssid and we use that
everywhere else.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index a729b87..0378bbc 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -3476,7 +3476,7 @@
 		/* Cache for later use during resets */
 		memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
 		common->curaid = 0;
-		ath5k_hw_set_associd(ah);
+		ath5k_hw_set_bssid(ah);
 		mmiowb();
 	}
 
@@ -3494,7 +3494,7 @@
 				  "Bss Info ASSOC %d, bssid: %pM\n",
 				  bss_conf->aid, common->curbssid);
 			common->curaid = bss_conf->aid;
-			ath5k_hw_set_associd(ah);
+			ath5k_hw_set_bssid(ah);
 			/* Once ANI is available you would start it here */
 		}
 	}