ath9k: Use bitfields for sc operations

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
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 2736a4b..f1c4201 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -111,7 +111,7 @@
 	rix = 0;
 	rt = sc->sc_currates;
 	rate = rt->info[rix].rateCode;
-	if (sc->sc_flags & ATH_PREAMBLE_SHORT)
+	if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
 		rate |= rt->info[rix].shortPreamble;
 
 	ath9k_hw_set11n_txdesc(ah, ds
@@ -975,5 +975,5 @@
 	 * beacon frame we just received.
 	 */
 	ath_beacon_config(sc, if_id);
-	sc->sc_beacons = 1;
+	sc->sc_flags |= SC_OP_BEACONS;
 }