ath9k_htc: Sync struct ath9k_htc_cap_target with FW

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/htc.h

@@ -113,6 +113,7 @@ struct ath9k_htc_cap_target {
 	u8 tx_chainmask_legacy;
 	u8 rtscts_ratecode;
 	u8 protmode;
+	u8 pad;
 } __packed;
 
 struct ath9k_htc_target_vif {