fix bug that there's very low ratio to cause BLE assert(65536, 0) in rwble.c at line 222

diff --git a/components/bt/lib b/components/bt/lib
index 77bfaacde6b2cb306a91c5d51045f01bbe599c12..44be6e460e537106850dfaeb4d5ef1a39838499b 160000 (submodule)
--- a/components/bt/lib
+++ b/components/bt/lib
@@ -1 +1 @@
-Subproject commit 77bfaacde6b2cb306a91c5d51045f01bbe599c12
+Subproject commit 44be6e460e537106850dfaeb4d5ef1a39838499b