Make sure all jobs are sorted by override state.

Override state is only set via adb, which means its used for testing job
execution. Make sure we put jobs under test at the front of the queue to
avoid issues with execution delay.

Bug: 141645789
Bug: 223437753
Test: atest FrameworksServicesTests:PendingJobQueueTest
Change-Id: Icc4788117c46ada49c030f82f26affbd56e6ef69