Move system apps pinner default values to be config driven and ensure new devices inherit them

Test: dumpsys pinner
Test: atest FrameworksServicesTests_pinner_service:com.android.server.PinnerServiceTest
Flag: EXEMPT refactor
Bug: 340935152
Bug: 358273970

Change-Id: Icb068f5c079a4cbea3263a29255f0f76ba41c10d