fix the bug when scan fail after STA failed to connect to a nonexistent AP

diff --git a/components/esp32/lib b/components/esp32/lib
index fbe87f4076739cd3aa4cc7f9cd668c152279709e..b3bfff2e5bae36c5bbf42598dfa54edf33fa65e4 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit fbe87f4076739cd3aa4cc7f9cd668c152279709e
+Subproject commit b3bfff2e5bae36c5bbf42598dfa54edf33fa65e4