iwlwifi: mvm: set max TX/RX A-MPDU subframes to HE limit

In mac80211, the default remains for HT, so set the limit to
HE for our driver.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

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

@@ -604,9 +604,13 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
 	if (cfg->max_rx_agg_size)
 		hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
+	else
+		hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 
 	if (cfg->max_tx_agg_size)
 		hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
+	else
+		hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 
 	op_mode = hw->priv;