BUG=chromium-os:35605
TEST=emerge-$board chromeos-kernel does not show hardened warnings on debug
files.
Change-Id: I0396ef9f964ad435602f65db6192429521906de1
Reviewed-on: https://gerrit.chromium.org/gerrit/36397
Tested-by: asharif <asharif@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: asharif <asharif@chromium.org>