[LSC] Add LOCAL_LICENSE_KINDS to external/nist-sip

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

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I80a91e349cd1b76a367d2aa008ae75ecc8b18bdf
1 file changed