libbpf-tools: update bpftool
libbpf-tools: update bpftool

We need up-to-date bpftool to support skeletons with multiple BPF programs per
SEC().

Signed-off-by: Andrii Nakryiko <450886ab958931a1b640c5db7e55f3b50c4bb462@kernel.org>

brendangregg/bcc,iovisor/bcc,iovisor/bcc,iovisor/bcc,brendangregg/bcc,iovisor/bcc,brendangregg/bcc,brendangregg/bcc,iovisor/bcc,brendangregg/bcc