Fix selecting phone account dialog show error.

AOSP dialer used to ignore UserHandle of a PhoneAccountHandle when
building the selection list. When secondary user or guest mode is in
use, dialer composed a wrong PhoneAccountHandle with current UserHandle
so Telecom cannot provide correct information of this
PhoneAccountHandle.

Bug: 157499347
Test: Manually switch to guest mode or secondary user to check if the
dialog show correctly.

Change-Id: I8a9f9bcf5192f69ca270def48fb850106aa717fb