[LSC] Add LOCAL_LICENSE_KINDS to external/desugar

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: Ic7ebbe147bc93842bca7573b58917cb60dc342fb
1 file changed