[LSC] Add LOCAL_LICENSE_KINDS to frameworks/av

Added SPDX-license-identifier-Apache-2.0 to:
  services/audiopolicy/engine/config/tests/Android.bp
  services/audiopolicy/engine/config/tests/resources/Android.bp

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I2429c280b08a396d768974b0f23a73ea34538661