perf dso: kernel-doc for enum dso_binary_type

There are many and non-obvious meanings to the dso_binary_type enum
values. Add kernel-doc to speed interpretting their meanings.

Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250319050741.269828-3-irogers@google.com


Signed-off-by: Namhyung Kim <namhyung@kernel.org>