Restart Android framework to recover from failures.

If CarService crashes, CarServiceHelperService will restart all of Android
so the system ends up someplace more predictable without dangling service
references.  Enabled by a property, disabled for now.  Always save call
stack traces from our favorite processes and HALs on a crash.

Bug: 131179409
Test: Local build, crash car service and verify system restarts when enabled
and anr file is generated after killing com.android.car.
Change-Id: Id3cc25d182c3ccf1f90160dd129a5196e44a6554