Bluetooth: Host: Fix unable to connect using host resolution

Fix issue unable to connect to bonded peer when host resolution is used
either because the controller does not support privacy, or the
controller resolving list was exceeded.
In this case we need to use the RPA from the advertising report
directly, there is a small chance of the peer cycling the RPA here, in
which case the connection might be unsuccessful.

Bug introduced here: 45da629b

Fixes: #18306

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>