Fix the bug that station fails to connect to AP sometimes.

diff --git a/components/esp32/lib b/components/esp32/lib
index a197e872e0d96a0f5f57c7d4babefe2c77db4cf4..64a7919d8439ff5971a469a3f7ae9bce4bc63313 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit a197e872e0d96a0f5f57c7d4babefe2c77db4cf4
+Subproject commit 64a7919d8439ff5971a469a3f7ae9bce4bc63313