mac80211_hwsim: indicate in IBSS that we have transmitted beacons

This is actually true because there's no functional beacon distribution
and lets us get active scanning working - without it, mac80211 doesn't
respond to probe requests.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.554d1199b309.Id86fd36e3d88d2a75d6e0c6618fd93ce8fe84065@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/mac80211_hwsim.c

@@ -2464,6 +2464,11 @@ static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
 	WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
 }
 
+static int mac80211_hwsim_tx_last_beacon(struct ieee80211_hw *hw)
+{
+	return 1;
+}
+
 #define HWSIM_COMMON_OPS					\
 	.tx = mac80211_hwsim_tx,				\
 	.start = mac80211_hwsim_start,				\
@@ -2474,6 +2479,7 @@ static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
 	.config = mac80211_hwsim_config,			\
 	.configure_filter = mac80211_hwsim_configure_filter,	\
 	.bss_info_changed = mac80211_hwsim_bss_info_changed,	\
+	.tx_last_beacon = mac80211_hwsim_tx_last_beacon,	\
 	.sta_add = mac80211_hwsim_sta_add,			\
 	.sta_remove = mac80211_hwsim_sta_remove,		\
 	.sta_notify = mac80211_hwsim_sta_notify,		\