selftests/bpf: Add test for lsm tail call

Add test for lsm tail call to ensure tail call can only be used between
bpf lsm progs attached to the same hook.

Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Link: https://lore.kernel.org/r/20240719110059.797546-9-xukuohai@huaweicloud.com


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