selftests/bpf: Add test cgrp_local_storage to DENYLIST.s390x

Test cgrp_local_storage have some programs utilizing trampoline.
Arch s390x does not support trampoline so add the test to
the corresponding DENYLIST file.
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20221026042917.675685-1-yhs@fb.comSigned-off-by: Alexei Starovoitov <ast@kernel.org>

tools/testing/selftests/bpf/DENYLIST.s390x

@@ -10,6 +10,7 @@ bpf_nf                                   # JIT does not support calling kernel f
 bpf_tcp_ca                               # JIT does not support calling kernel function                                (kfunc)
 cb_refs                                  # expected error message unexpected error: -524                               (trampoline)
 cgroup_hierarchical_stats                # JIT does not support calling kernel function                                (kfunc)
+cgrp_local_storage                       # prog_attach unexpected error: -524                                          (trampoline)
 core_read_macros                         # unknown func bpf_probe_read#4                                               (overlapping)
 d_path                                   # failed to auto-attach program 'prog_stat': -524                             (trampoline)
 deny_namespace                           # failed to attach: ERROR: strerror_r(-524)=22                                (trampoline)