[LSC] Add LOCAL_LICENSE_KINDS to external/modp_b64 am: 38a2bcd309

Original change: https://android-review.googlesource.com/c/platform/external/modp_b64/+/1588918

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8523bcfe3aef74b4c9c048be03b6f82645acaca4