1. fix the issue that no tbtt is generated in station+softap mode when maximum modem sleep is enabled 2. update libphy.a to V4670 719f9f6_20210218 for esp32
@@ -1 +1 @@
-Subproject commit 127aa3bba9effe0976e5de30d89107318be3cc34
+Subproject commit 2d8942782c28a3621e6d73eb4dab20e8635569f1
zhangyanjiao