mesh: fix a bug in generating ESP-SSID IE

1. wifi: if Wi-Fi is not scanning, ignore beacons from different channels.

diff --git a/components/esp32/lib b/components/esp32/lib
index 2f5fc77efd724c54d78deb8c38abd5b290111180..5b468952c7bad16e7fc5fd6f52c8e5b81f6662c6 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit 2f5fc77efd724c54d78deb8c38abd5b290111180
+Subproject commit 5b468952c7bad16e7fc5fd6f52c8e5b81f6662c6