iwlwifi: add disable_11ac module param

Add module parameter that disables VHT capabilities.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
index b88ecc7..d1a5dd1 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
@@ -115,6 +115,7 @@
  *	entering D0i3 (in msecs)
  * @lar_disable: disable LAR (regulatory), default = 0
  * @fw_monitor: allow to use firmware monitor
+ * @disable_11ac: disable VHT capabilities, default = false.
  */
 struct iwl_mod_params {
 	int sw_crypto;
@@ -135,6 +136,7 @@
 	unsigned int d0i3_entry_delay;
 	bool lar_disable;
 	bool fw_monitor;
+	bool disable_11ac;
 };
 
 #endif /* #__iwl_modparams_h__ */