[LSC] Add LOCAL_LICENSE_KINDS to external/libsrtp2 am: f39d4199d6 am: c75fd50df4 am: 3d7aa0578a

Original change: https://android-review.googlesource.com/c/platform/external/libsrtp2/+/1588161

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ied67bc761a923b50dc8203b1ea8d51432af26567