submodule: update esp-idf

redchenjs · redchenjs · commit e0c050e41e09 · 2019-08-10T13:58:34.000+08:00
diff --git a/esp-idf b/esp-idf
@@ -1 +1 @@
-Subproject commit 70474ae844b60aa8b29e5d596308b6e65850d62e
+Subproject commit 39f090a4f1dee4e325f8109d880bf3627034d839
