components/coex: Fix BT disconnecting due to too many reset BB

Update coex version to 1.1.6

diff --git a/components/esp_wifi/lib_esp32 b/components/esp_wifi/lib_esp32
index 8b035615a1f3329aeff899bc0b57b87c0e10a6ff..69007bcfaea2ded4444dedc5e394cba084e32fe0 160000 (submodule)
--- a/components/esp_wifi/lib_esp32
+++ b/components/esp_wifi/lib_esp32
@@ -1 +1 @@
-Subproject commit 8b035615a1f3329aeff899bc0b57b87c0e10a6ff
+Subproject commit 69007bcfaea2ded4444dedc5e394cba084e32fe0