l2cap: Notify upper layer about credit based conn request collision am: dda99544

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/19290086



Change-Id: I76ca872b9119ef9c0f1c7331795e0b89ea12e32d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>