[LSC] Add LOCAL_LICENSE_KINDS to frameworks/base

Added SPDX-license-identifier-Apache-2.0 to:
  location/tests/Android.bp
  services/tests/servicestests/test-apps/PackageParsingTestManifests/Android.bp
  tests/FlickerTests/test-apps/Android.bp
  tests/backup/Android.mk

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: Ie3a7632b6f46a8a104bfdf52ab77fb7ffefbdd7c