perf MANIFEST: Add bpftool files to allow building with BUILD_BPF_SKEL=1

We need bpftool and required kernel/bpf/disasm.[ch] to bootstrap the
cgroups, bperf and other BPF skels used by perf.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 file changed