1. Fix WiFi log print level
2. Optimize WiFi/BT coexist sleep
- If any data tx/rx in WiFi slice, fore wakeup next TBTT
- Increase active timeout time to coex TBTT interval to avoid sleep in WiFi slice
3. Fix esp_wifi_stop() crash
esp_wifi_stop() crashes if it's called when WiFi is not initialized.
4. Fix esp_wifi_stop() leads to memory leak
5. esp_wifi_sta_get_ap_info() returns actual values of group ciphers