[LSC] Add LOCAL_LICENSE_KINDS to frameworks/base

Added SPDX-license-identifier-Apache-2.0 to:
  core/tests/hosttests/test-apps/DownloadManagerTestApp/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyAndException/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestApp/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestAppTests2/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestAppWithCorruptedDex/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestServices/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyTestServicesTests2/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v1/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v2/Android.mk
  core/tests/hosttests/test-apps/MultiDexLegacyVersionedTestApp_v3/Android.mk
  core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
  core/tests/overlaytests/host/test-apps/UpdateOverlay/Android.mk
  packages/Android.bp
  packages/SystemUI/tests/Android.mk
  services/tests/servicestests/test-apps/PackageParsingTestManifests/Android.bp
  tests/Camera2Tests/CameraToo/Android.mk
  tests/Camera2Tests/CameraToo/tests/Android.mk
  tests/Camera2Tests/SmartCamera/SimpleCamera/Android.mk
  tests/Camera2Tests/SmartCamera/SimpleCamera/tests/Android.mk
  tests/CanvasCompare/Android.mk
  tests/FlickerTests/test-apps/Android.bp
  tests/LockTaskTests/Android.mk
  tests/SoundTriggerTests/Android.mk
  tools/aapt2/integration-tests/MergeOnlyTest/App/Android.mk
  tools/aapt2/integration-tests/NamespaceTest/App/Android.mk
  tools/aapt2/integration-tests/NamespaceTest/Split/Android.mk
  tools/fonts/Android.bp

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: Ic480b653df5da840f5e65b818af3de5c8417ab4a