ath9k: move ATH_AMPDU_LIMIT_MAX to hw.h

This is used by hw code.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.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 73c2ac5..f3b5a60 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -189,7 +189,6 @@
 /* minimum h/w qdepth to be sustained to maximize aggregation */
 #define ATH_AGGR_MIN_QDEPTH        2
 #define ATH_AMPDU_SUBFRAME_DEFAULT 32
-#define ATH_AMPDU_LIMIT_MAX        (64 * 1024 - 1)
 
 #define IEEE80211_SEQ_SEQ_SHIFT    4
 #define IEEE80211_SEQ_MAX          4096
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 92770cb..35a3224 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -51,6 +51,8 @@
 #define AT9285_COEX3WIRE_SA_SUBSYSID	0x30aa
 #define AT9285_COEX3WIRE_DA_SUBSYSID	0x30ab
 
+#define ATH_AMPDU_LIMIT_MAX        (64 * 1024 - 1)
+
 /* Register read/write primitives */
 #define REG_WRITE(_ah, _reg, _val) \
 	ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))