[LSC] Add LOCAL_LICENSE_KINDS to external/libaom am: a029c620aa am: 0021471ad7 am: 8ad9973d98

Original change: https://android-review.googlesource.com/c/platform/external/libaom/+/1865121

Change-Id: I1f32ea0fb13b95bdb071df69d3c2a20de6d48ec0