mac80211: rename WLAN_STA_SUSPEND to WLAN_STA_BLOCK_BA

I want to use it during station destruction as well
so rename it to WLAN_STA_BLOCK_BA which is also the
only use of it now.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index cb9f80a..7d87f44 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -173,7 +173,7 @@
 
 	status = WLAN_STATUS_REQUEST_DECLINED;
 
-	if (test_sta_flags(sta, WLAN_STA_SUSPEND)) {
+	if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "Suspend in progress. "
 		       "Denying ADDBA request\n");