Drop pending fragments for disconnected connection am: aa17a7c0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3325515



Change-Id: I65799a46390524ee99c726737f8852a9b5f76f89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>