Fix an integer overflow bug in avdt_msg_asmbl am: bf9449a7 am: df75554b...

Fix an integer overflow bug in avdt_msg_asmbl am: bf9449a7 am: df75554b am: 5e673575 am: ea955844 am: 9afef612

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/23152778



Change-Id: Iad2ff2cb3940b241a5ff31b1f0722288857a08c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>