Change command like set-default-dialer to be a test override.

RoleManager likes to terminate apps when roles are changed which does
not work in CTS tests.  We need to use a temp override in Telecom
for now.

Test: Run the CTS tests over, and over and over again.
Bug: 131065482
Change-Id: Id36942f2813abdfa0020ce4805c492a69bd07d0e