gd: Present zeroed peer addr with type when using connect list

The fields are ignored but zeroed out for correctness.
Preserves original stack behavior

Bug: 171568335
Test: CtsVerifier
Test: atest --host bluetooth_test_gd
Tag: #refactor

Change-Id: I6235c9545115a247d4f4b3a7f31dfa97ce3d06b2