wlan : rename wlan_hdd_action to wlan_hdd_mgmt_tx

The API name is changed to wlan_hdd_mgmt_tx, as the old API name
is not appropriate for managment call back.

Change-Id: If9c46a1f1316c21cff27da42532919bd68f19e91
CRs-Fixed: 590432
(cherry picked from commit 57a2bd15e9e197f90cc7c3ed7d02f120d043c0ea)
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 77bce68..3567772 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -9803,7 +9803,7 @@
     .get_tx_power = wlan_hdd_cfg80211_get_txpower,
     .remain_on_channel = wlan_hdd_cfg80211_remain_on_channel,
     .cancel_remain_on_channel =  wlan_hdd_cfg80211_cancel_remain_on_channel,
-    .mgmt_tx =  wlan_hdd_action,
+    .mgmt_tx =  wlan_hdd_mgmt_tx,
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
      .mgmt_tx_cancel_wait = wlan_hdd_cfg80211_mgmt_tx_cancel_wait,
      .set_default_mgmt_key = wlan_hdd_set_default_mgmt_key,