perf check: Add tip about building with libbfd using BUILD_NONDISTRO=1

perf check: Add tip about building with libbfd using BUILD_NONDISTRO=1

There are still some cases, for instance to disassembly BPF code that
needs this, so until someone works on supporting that, we're keeping the
code but it is opt-in.

Make that clear on the 'perf version --build-options' and other ways to
query if a feature is present:

  $ perf check feature libbfd
                libbfd: [ OFF ]  # HAVE_LIBBFD_SUPPORT ( tip: Deprecated, license incompatibility, use BUILD_NONDISTRO=1 and install binutils-dev[el] )
  $ perf -vv | grep bfd
                libbfd: [ OFF ]  # HAVE_LIBBFD_SUPPORT ( tip: Deprecated, license incompatibility, use BUILD_NONDISTRO=1 and install binutils-dev[el] )
  $

Tested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/Z_dkNDj9EPFwPqq1@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>