Fix locale dependent tests

A couple of tests depend on a certain locale being set without actually
setting it. These tests then fail depending on the order of these and
other tests being ran. This has those tests set the locale that they
depend on.

Bug: 290377322
Bug: 290377794
Bug: 290377713
Test: Running these tests both locally and in abtd
Change-Id: Ife73989406fbb0fbb830688d8e15604255605fb0