mac80211_hwsim: Advertise support for multicast RX registration

While mac80211_hwsim does not need this to configure RX filters, it is
convenient to have this enabled for testing purposes.
Signed-off-by: NJouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200425155713.25687-3-jouni@codeaurora.orgSigned-off-by: NJohannes Berg <johannes.berg@intel.com>

drivers/net/wireless/mac80211_hwsim.c

@@ -1827,6 +1827,8 @@ static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 	data->rx_filter = 0;
 	if (*total_flags & FIF_ALLMULTI)
 		data->rx_filter |= FIF_ALLMULTI;
+	if (*total_flags & FIF_MCAST_ACTION)
+		data->rx_filter |= FIF_MCAST_ACTION;
 
 	*total_flags = data->rx_filter;
 }
@@ -3060,6 +3062,8 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
 			       NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BEACON_PROTECTION);
+	wiphy_ext_feature_set(hw->wiphy,
+			      NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
 
 	hw->wiphy->interface_modes = param->iftypes;