ath9k: Add periodic NoA support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 0bc63bd..a5afd4a 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -489,6 +489,9 @@
 	u8 noa_index;
 	u32 offchannel_start;
 	u32 offchannel_duration;
+
+	u32 periodic_noa_start;
+	u32 periodic_noa_duration;
 };
 
 struct ath9k_vif_iter_data {