qcacmn: Move mgmt descriptors per pdev for probe response throttling

Mgmt tx rx descriptors are now used instead of WMI descriptors
for management Tx/Rx.
Since WMI descriptors were per radio to support probe response throttling
the mgmt descriptors should also be moved from per psoc to per pdev.

The reason for this is probe response throttling should happen per radio
and not per psoc since if the mgmt frames peding counter is
maintained per psoc, it could affect other radios of the same psoc also.

The maximum number of mgmt descriptors per psoc was 50.
This is also changed to 512 mgmt descriptors per pdev which is the
same as WMI descriptors per radio as used earlier to support
probe response throttling.

Change-Id: Ibb46082e0acf340800418a7e9689a29cd688bdab
CRs-Fixed: 2146177

umac/cmn_services/inc/wlan_cmn.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -49,6 +49,10 @@
 /* Invalid pdev_id */
 #define WLAN_INVALID_PDEV_ID 0xFFFFFFFF
 
+/* Invalid free descriptor count */
+#define WLAN_INVALID_MGMT_DESC_COUNT 0xFFFFFFFF
+
+/* 802.11 cap info */
 /* 802.11 cap info */
 #define WLAN_CAPINFO_ESS               0x0001
 #define WLAN_CAPINFO_IBSS              0x0002