selftests/bpf: enable many-args tests for arm64

JIRA: https://issues.redhat.com/browse/RHEL-78203

Conflicts: context change due to missing upstream commit ac13c50
           ("selftests/bpf: Enable kprobe_multi tests for ARM64")

commit 149ead9
Author: Alexis Lothoré (eBPF Foundation) <[email protected]>
Date:   Tue May 27 12:06:04 2025 +0200

    selftests/bpf: enable many-args tests for arm64

    Now that support for up to 12 args is enabled for tracing programs on
    ARM64, enable the existing tests for this feature on this architecture.

    Signed-off-by: Alexis Lothoré (eBPF Foundation) <[email protected]>
    Link: https://lore.kernel.org/r/[email protected]
    Signed-off-by: Alexei Starovoitov <[email protected]>

Signed-off-by: Viktor Malik <[email protected]>

Author: viktormalik

tools/testing/selftests/bpf/DENYLIST.aarch64

@@ -3,8 +3,6 @@ bpf_cookie/multi_kprobe_link_api                 # kprobe_multi_link_api_subtest
 kprobe_multi_bench_attach                        # needs CONFIG_FPROBE
 kprobe_multi_test                                # needs CONFIG_FPROBE
 module_attach                                    # prog 'kprobe_multi': failed to auto-attach: -95
-fentry_test/fentry_many_args                     # fentry_many_args:FAIL:fentry_many_args_attach unexpected error: -524
-fexit_test/fexit_many_args                       # fexit_many_args:FAIL:fexit_many_args_attach unexpected error: -524
 tracing_struct/struct_many_args                  # struct_many_args:FAIL:tracing_struct_many_args__attach unexpected error: -524
 fill_link_info/kprobe_multi_link_info            # bpf_program__attach_kprobe_multi_opts unexpected error: -95
 fill_link_info/kretprobe_multi_link_info         # bpf_program__attach_kprobe_multi_opts unexpected error: -95