Guard against methods that use the PhoneAccount object pre-MSIM.

Use alternative means or just return empty lists when calling methods
that require MSIM in pre-LMr1 devices.
Also move compatability checks to ContactsCommon for methods that may
be called in ContactsCommon as well as Dialer

Bug: 25776171
Change-Id: I074bb147dbd53d623f322482ad735391c84ae5ad