Add an am command to disable service restart backoff policy.

So service restart could happen sooner in testings.

BYPASS_INCLUSIVE_LANGUAGE_REASON=legacy API name

Bug: 170309420
Bug: 182832497
Test: atest FrameworksServicesTests:ServiceRestarterTest
Change-Id: I1180333f628c2bb3d974ae826a1657b0ada00594