wlan: Unblock MC thread to process command

Processing of commands in right sequence is required for
a safe cleanup on firmware and host driver.
This change will call WLANTL_TLDebugMessage when the wlan
module is being removed so that BTQM queues are cleaned
up and MC Thread is not blocked anymore

Change-Id: I0e1cc229c2b92aaed8d41ba7e7f46406eac1196f
CRs-Fixed: 798042
diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index adcd3dc..97def2a 100755
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -8161,6 +8161,10 @@
 
    if (VOS_FTM_MODE != hdd_get_conparam())
    {
+      /* This will issue a dump command which will clean up
+         BTQM queues and unblock MC thread */
+      WLANTL_TLDebugMessage(WLANTL_DEBUG_FW_CLEANUP);
+
       // Unloading, restart logic is no more required.
       wlan_hdd_restart_deinit(pHddCtx);