[LSC] Add LOCAL_LICENSE_KINDS to system/sepolicy

Added SPDX-license-identifier-Apache-2.0 to:
  compat/Android.bp
  contexts/Android.bp

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all
Change-Id: Ie1f38c4f255b6c0b3d2351638cfa3a43e6cf130c
2 files changed