Improve remote connection logging.

This CL improves traceability of calls initiated via a remote connection
service.
For regular incoming/outgoing calls, when initiating a request to create
a remote connection in RemoteConnectionService, we set
EXTRA_REQUESTING_PACKAGE_NAME in the parcelled request to the package name
of the connection manager.  In ConnectionService this serves as an
indicator that the incoming request is via a connection manager and is
used to trigger setting of EXTRA_REMOTE_PHONE_ACCOUNT_HANDLE with the
phone account handle the remote connection service uses to place the call.
For conferences and existing connections, the initial request is from
the remote connection service to the connection manager so we can
just set the EXTRA_REMOTE_PHONE_ACCOUNT handle there directly.

Also cleaned up logging in the telecom session logging to remove the
assumption that the ownerInfo is an incall service.

Test: Manual testing with connection manager to verify logging.
Fixes: 154353494
Change-Id: Iee1b5cfd3334a5de08d7b04022b7c6d5af6a4b04