component/bt : update lib

diff --git a/components/bt/lib b/components/bt/lib
index a0f2d0a961eef1a4926218b26b77011a89e8188f..91657e0c4025f5a694b0a89f449c347b0f2fdf79 160000 (submodule)
--- a/components/bt/lib
+++ b/components/bt/lib
@@ -1 +1 @@
-Subproject commit a0f2d0a961eef1a4926218b26b77011a89e8188f
+Subproject commit 91657e0c4025f5a694b0a89f449c347b0f2fdf79