esp32: fix wrongly deleting hardware BA index bug

Fix the bug that hardware BA index will be wrongly removed in
WiFi mode WIFI_MODE_APSTA.

diff --git a/components/esp32/lib b/components/esp32/lib
index 9fdc0c52f261abfe6044d936568e16957e32ed05..b9a4cba7c522ee2974009e4fb10fd426f0348e0f 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit 9fdc0c52f261abfe6044d936568e16957e32ed05
+Subproject commit b9a4cba7c522ee2974009e4fb10fd426f0348e0f