[LSC] Add LOCAL_LICENSE_KINDS to system/core

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

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I362f72ab99850558ddc7b50108c1ec6a212cb258