selftests/bpf: Add tracing multi attach fails test

Adding tests for attach fails on tracing multi link.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20260606123955.34

selftests/bpf: Add tracing multi attach fails test

Adding tests for attach fails on tracing multi link.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20260606123955.345967-27-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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