libbpf: Support new cgroup local storage

Add support for new cgroup local storage.

Acked-by: David Vernet <void@manifault.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20221026042856.673989-1-yhs@fb.com


Signed-off-by: Alexei Starovoitov <ast@kernel.org>