Tests: Bluetooth: Host: update rpa expired bsim to cover more use cases

rpa expired bsim is refactored so that every rpa rotation, one of
the adv set belong to an adv_id returns false based on adv_index.
In turn all adv sets under the same adv_Id continues with old rpa.

Signed-off-by: Nithin Ramesh Myliattil <niym@demant.com>