base_image_util.sh: Add arm32 C/C++ to arm64 builds

For a "short" period of time we need the arm32 C/C++ libraries
installed on arm64 boards. Since this is only for a "short" while
we'll just add a special rule here.

BUG=b:223285139
TEST=tryjob

Cq-Depend: chromium:3531139, chromium:3536480
Change-Id: I5b3a041a1bb5dfd318d8024d3832a98b51635f32
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3530534
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Sergey Frolov <sfrolov@google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Commit-Queue: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
1 file changed