esp32: fixs about auto-reconnect and ap ssid configuration

1. Remove auto-reconnect
2. Use strnlen instead strlen to calculate ssid len in wifi lib

diff --git a/components/esp32/lib b/components/esp32/lib
index f688a5e1b2f5e4cb8dd2cdbd8dedf63a74b1d063..01351616820811bc08e7f7bd24e448df7897eedf 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit f688a5e1b2f5e4cb8dd2cdbd8dedf63a74b1d063
+Subproject commit 01351616820811bc08e7f7bd24e448df7897eedf