ath9k_hw: add support for parsing PA predistortion related EEPROM fields

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 7da7d73..bdd8aa0 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -263,7 +263,8 @@
 	EEP_PWR_TABLE_OFFSET,
 	EEP_DRIVE_STRENGTH,
 	EEP_INTERNAL_REGULATOR,
-	EEP_SWREG
+	EEP_SWREG,
+	EEP_PAPRD,
 };
 
 enum ar5416_rates {