__wlan_hdd_cfg80211_do_acs mallocs memory of
adapter->session.ap.sap_config.acs_cfg.ch_list
without checking and free original memory.
If hostapd is killed by -9, and interface wlan0 keep on.
wlan_hdd_cfg80211_stop_ap and wlan_hdd_undo_acs isn't called,
acs_cfg.ch_list memory isn't freed.
if hostapd is started again, __wlan_hdd_cfg80211_do_acs is called again,
malloc memory of acs_cfg.ch_list again, last malloced memory is leaked
Change-Id: Ia45615aa75841381b13a2f779cb5d355526d78a2
CRs-Fixed: 2150040
069a61d7a5