Merge branch 'bugfix/coex_update_phy_to_fix_interrupt_wdt' into 'master'

esp32: update libphy.a to fix interrupt watchdog when WiFi and BT run at the same time and both enable modem sleep

See merge request idf/esp-idf!4191
This commit is contained in:
Jiang Jiang Jian
2019-01-29 17:12:10 +08:00