Make use of user id in getDefaultDialerApplication

In the version of getDefaultDialerApplication that has an argument for
user id, make use of it when querying the list of installed dialer
packages. Otherwise, a secondary user may find their default dialer
pointing to an app that they had disabled.

Test: manual
Change-Id: Id85ff730b820741cddb6afee8af095232d3dae0f
1 file changed