ath9k: Cleanup debug messages

Clean debug messages to use appropriate levels,
remove useless messages, and trim the number of
debug levels.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index ec99573..5b2752b 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -43,7 +43,7 @@
 
 	if (!ath9k_hw_set_txq_props(ah, sc->beacon.beaconq, &qi)) {
 		DPRINTF(sc, ATH_DBG_FATAL,
-			"unable to update h/w beacon queue parameters\n");
+			"Unable to update h/w beacon queue parameters\n");
 		return 0;
 	} else {
 		ath9k_hw_resettxqueue(ah, sc->beacon.beaconq);
@@ -132,11 +132,8 @@
 	avp = (void *)vif->drv_priv;
 	cabq = sc->beacon.cabq;
 
-	if (avp->av_bcbuf == NULL) {
-		DPRINTF(sc, ATH_DBG_BEACON, "avp=%p av_bcbuf=%p\n",
-			avp, avp->av_bcbuf);
+	if (avp->av_bcbuf == NULL)
 		return NULL;
-	}
 
 	/* Release the old beacon first */