Re-log stack/btm/btm_ble_gap::btm_ble_read_remote_features_complete

Towards loggable code

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

Change-Id: Ie0f33c905783981c92b06f5ea5718d49365200af