Add LOCAL_LICENSE_KINDS to external/bpftool am: 2db6b950ee

Original change: https://android-review.googlesource.com/c/platform/external/bpftool/+/2059110

Change-Id: I990f0a035541e33829f071c59d3047818f97600e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>