iwlwifi: mvm: set HW capability VHT_EXT_NSS_BW

Enable the VHT extended NSS BW feature in iwlwifi/mvm.
Signed-off-by: NShaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -419,6 +419,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 	ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
+	ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
 
 	if (iwl_mvm_has_tlc_offload(mvm)) {
 		ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);