Optimize WiFi memory

Optimize wifi memory (b987c01d)
1. Decrease WiFi task stack size by 512 Bytes
2. Modify WiFi NVS configuration array from static to dynamic
3. Move interrupt/RX relating variables from .bss segment to .data segment
4. Modify WiFi management short buffer from static to dynamic
5. Remove some useless WiFi buffer space

diff --git a/components/esp32/lib b/components/esp32/lib
index 1f2b30fc41b17d1fe8cca26e90d5665f212bfaa9..534a9b14101af90231d40a4f94924d67bc848d5f 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit 1f2b30fc41b17d1fe8cca26e90d5665f212bfaa9
+Subproject commit 534a9b14101af90231d40a4f94924d67bc848d5f