[LSC] Add LOCAL_LICENSE_KINDS to external/libcxx am: e120486753 am: 14afc3bb1d

Original change: https://android-review.googlesource.com/c/platform/external/libcxx/+/1588641

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I49e9ec5c6401400c4fa45d20ad9d1c8d6f724cba