Allow Traceur to take START_FOREGROUND_SERVICES_FROM_BACKGROUND

As part of targetting the Android S API level, we need to explicitly
allow the privapp Traceur to start services from the background.

Test: atest TraceurUiTest
Bug: 176849372
Change-Id: I58c2a23653541f8516beedf0971d60403eedbb02
1 file changed