1. fix the issue that no tbtt is generated in station+softap mode when maximum modem sleep is enabled
1. do not need to update multi-antenna configure when waking up
2. update libphy.a to V4670 719f9f6_20210218 for esp32(234056fe)
3. update libphy.a to V1500 20210225_0a54a2f for esp32s2(234056fe)
1. Change wifi scan duration from 120ms to 100ms
2. Using deport reg instead of ahb
3. Revert to report specific reason code when receiving deauth during 4-way-handshark
4. Fix the bug that tx ampdu parameter is not from peer device
5. Faster WiFi station connect improvement, avoid 100ms passive scan
6. Add FCS failed packets filter
7. Fix country code last byte to space instead of NULL
8. Fix softap cannot forward A-MSDU
9. Fix max tx power to 20dBm
10. Fix the issue that the esp_wifi_sta_get_ap_info can't get country
11. Update esp32 phy lib to v4660
12. Update esp32s2 phy lib to v1300
13. Fix the bug that esp32s2 can't get CSI info
update libphy.a to v4181 for ESP32(c4ea2b3c)
1. add API void set_rx_sense(sint8 sense_thr)
2. optimize RXIQ calibration
3. add i2c master reset to avoid failing to restart when i2c exception happens
4. add disable_wifi_agc before close rf
5. if wifi switch channel at BT on mode, do not switch hardware channel, just configure register
6. do not configure bb i2c every time to avoid disturb BT. Only configure bb i2c when switch between 20M and 40M
7. optimize some txrf registers to make TX mask better
8. do not switch channel in phy force wifi chan, let hardware to do it
1. Implement PMF support for unicast Mgmt frames
2. Add support for SA Query frame exchanges.
3. Utilize SW encryption API's for Mgmt frames.
4. Add BIP support on Rx of Bcast Mgmt frames.
