LogcatManagerService: Allow instrumentation tests

This CL exempts the instrumentation tests from per-use user consent
check.

Bug: 193708292
Bug: 217482811
Bug: 217495147
Test: atest PlatformRuleTests -- --abi x86_64
Test: atest FrameworksServicesTests -- --abi x86_64
Ignore-AOSP-First: pending fix for logcat privacy issue
Change-Id: I223ffd913918103c6d86e84f79a27bc7cda16dc0