librtc: update to v227
- remove librtc_clk and librtc_pm: will be added as source in ESP-IDF
- update librtc to use new function prototypes defined in ESP-IDF
See merge request !4
- remove librtc_clk and librtc_pm: will be added as source in ESP-IDF
- update librtc to use new function prototypes defined in ESP-IDF
- remove libiperf
1. Reset WIFI mac when wifi init(1f66f9bd)
2. roll back rx hung workaround for beacon timeout(01de55cf)
3. fix amsdu ap interface wrong issue(10db298a)
4. fix amsdu header parse error(04f6f1ef)
5. fix amsdu flag wrong issue(d6ee2c3a)
6. PHY: V350, fix BT rssi bug
7. RTC: V225, fix bt will be not work when wifi is reset
b54d385f - add options to disable nvs
33c0d396 - add station keepalive with softap
5d89cba9 - fix beacon rx start time not accurate issue
61ffdf94 - set wifi rx desc/buffer boundary check to internal memory boundary
1. RTC V214: modify APLL function for the chip of ECO version
2. Add API phy_close_rf()
3. RTC: V213: fix BT will not work when BT-init is called more than once
1. init phy and rf when start wifi or start sniffer.(301fb80d)
2. deinit phy and rf when stop wifi or stop sniffer.(301fb80d)
3. tw10007: Wifi station do not start if app_main on CPU APP(dd7a371c)
1. Reduce the default static rx buffer size from 25 to 10
2. Adjust ampdu interrupt size to 3, namely, raise 1 interrupt per 3-mpdu
3. Make a copy for all received packets, including AMSDU/AMPDU/MPDU
4. Fix softap mis-forward issue
5. Fix pp q full issue
6. Fix sniffer copy wrong content issue
305c6969 - fix several misc wifi issues:
1> Sniffer not work issue
2> If parameter of esp_wifi_init is null, use default value for rx buffer number
3> Enable ap rx ampdu interface
c526ecd6 - fix ampdu<->mpdu<->ampdu switch may cause rx slow issue by put mpdu into ampdu reorder queue
5a736737 - fix each ac first sending always fail issue by adding retry
1. dhcp/arp tx not use ampdu(ff6acdbc)
2. don't reconnect when ap not found(ff6acdbc)
3. modify trc to not null(d8abc9f2)
4. modify to use PP_F_FORCE_1M to identity null data(d8abc9f2)
5. add wpa2 set identity api
