Merge branch 'Start libbpf 1.0 dev cycle'

Andrii Nakryiko says:

====================

Start preparations for libbpf 1.0 release and as a first test remove
bpf_create_map*() APIs.
====================

Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>