qcacld-3.0: Advertise max NSS capability with few IOT APs

Few IOT APs advertise reduced NSS capabilities on ending
up in bad state. These APs can later recover to support
the actual NSS capabilities. In this scenario, when STA
initiates connection to these APs, which are in bad state,
reduced NSS capabilities is advertised. STA cannot later
upgrade NSS capabilities to the minimum of STA max NSS
capability and APs actual NSS capability, once AP recovers.

Fix is to advertise max NSS capability during connection
with these IOT APs based on vendor OUIs and downgrade if
AP still advertises reduced NSS capability in association
response.

Change-Id: I49ea13534b1a44fd9ffadd1e8fb44e9d782147c4
CRs-Fixed: 2453938

action_oui/dispatcher/inc/wlan_action_oui_public_struct.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2019 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
@@ -88,6 +88,7 @@
  * @ACTION_OUI_SWITCH_TO_11N_MODE: connect in 11n
  * @ACTION_OUI_CONNECT_1X1_WITH_1_CHAIN: connect in 1x1 & disable diversity gain
  * @ACTION_OUI_DISABLE_AGGRESSIVE_TX: disable aggressive TX in firmware
+ * @ACTION_OUI_FORCE_MAX_NSS: Force Max NSS connection with few IOT APs
  * @ACTION_OUI_MAXIMUM_ID: maximun number of action oui types
  */
 enum action_oui_id {
@@ -98,6 +99,7 @@ enum action_oui_id {
 	ACTION_OUI_SWITCH_TO_11N_MODE = 4,
 	ACTION_OUI_CONNECT_1X1_WITH_1_CHAIN = 5,
 	ACTION_OUI_DISABLE_AGGRESSIVE_TX = 6,
+	ACTION_OUI_FORCE_MAX_NSS = 7,
 	ACTION_OUI_MAXIMUM_ID
 };