Log when job quota is reduced for buggy apps

Count the times job scheduler artificially lowers quota for a job
because it considers the caller buggy due to excessive job timeouts.

The logic is refactored to allow simpler logging, but no other
functional change is intended.

Test: statsd_testdrive 528

Existing job tests:
Test: atest FrameworksMockingServicesTests:JobSchedulerServiceTest
Test: atest FrameworksMockingServicesTests:JobStatusTest

Bug: 291146667
Change-Id: I62654be0a0cdc713a17146c3ec612b37e8283b3e
Merged-In: I62654be0a0cdc713a17146c3ec612b37e8283b3e