fix package visibility for installed accessibility services

If the app targets API level 30, the returned installed
AccessibilityServiceInfo would based on its own package visiblity.
Using packageManagerInternal#filterAppAccess to determine whether
we need to fitler the service or not.

Bug: 179699353
Test: manual - use the test apk and check the log
      atest AppEnumerationTests
Change-Id: Ieea089e10410a9d9feeb4a741c871c43547b1861