components/bt: Fix assert due to alloc LMP TX buffer failed

diff --git a/components/bt/lib b/components/bt/lib
index 48242ccf7137fd801ea32a7d85d7d66c684d7df3..8b002f21e077a0fb856e143de3b838839994023e 160000 (submodule)
--- a/components/bt/lib
+++ b/components/bt/lib
@@ -1 +1 @@
-Subproject commit 48242ccf7137fd801ea32a7d85d7d66c684d7df3
+Subproject commit 8b002f21e077a0fb856e143de3b838839994023e