liu zhifu a0d61eca20 esp32: backport some WiFi fixes to v3.3
Backport following Wifi fixes:

1. Optimize WiFi sleep in WiFi/BT coexist mode
   I> If any data TX/RX in WiFi slice, force wakeup next TBTT
   II> Increase active timeout to coex TBTT to avoid sleep in WiFi slice

2. Fix esp_wifi_stop() crash
   esp_wifi_stop() crashes if it's called when WiFi is not initialized.

3. Fix WiFi log print level

4. Return fails if AP's configuring AP channel is out of range

5. esp_wifi_sta_get_ap_info() returns actual values of group ciphers
2020-04-02 10:27:11 +08:00
..
2019-06-14 14:57:55 +08:00
2018-04-10 14:08:10 +00:00
2018-04-10 14:08:10 +00:00