[RTT2] Use generic Responder configuration

Use the generic Responder configuration in the service. I.e. all peer
configurations are translated to their common Responder configuration
by the time they make it into the service.

Bug: 65014962
Test: unit tests and integration tests
Change-Id: I90e4e63bb5740851082e6512ccfd217a9e81aa63
4 files changed