Move btm_ble_increment_link_topology_mask l2c=>btm

Towards readable code

Bug: 163134718
Tag: #refactor
Test: act.py -tc BleCocTest
Test: ble paired 2 phones
Test: classic paired Bose SoundLink

Change-Id: I683d68030531bbc635c5f357a8cc356d925d40c8