Offer additional quota to system installers.

Give power-exempted apps with the INSTALL_PACKAGES permission
additional quota for regular type of jobs.

Bug: 398264531
Test: atest FrameworksMockingServicesTests:com.android.server.job.controllers.QuotaControllerTest
Test: atest CtsJobSchedulerTestCases
Flag: com.android.server.job.additional_quota_for_system_installer
Change-Id: Iaffd26e74e2ab9dc3a5ef9b22e87912dd221e324