[LSC] Add LOCAL_LICENSE_KINDS to external/kotlinx.metadata

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

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I0b9d107ea446cc07fc983e8d7de8305b4fadceaa
1 file changed