perf machine: Fixup kernel maps ends after adding extra maps

I just noticed it would add extra kernel maps after modules.  I think it
should fixup end address of the kernel maps after adding all maps first.

Fixes: 876e80cf ("perf tools: Fixup end address of modules")
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/lkml/Z7TvZGjVix2asYWI@x1
Link: https://lore.kernel.org/lkml/Z712hzvv22Ni63f1@google.com
Link: https://lore.kernel.org/r/20250228211734.33781-4-acme@kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>