Update hooks: migrate arm-generic to freon

BUG=chromium:532719
TEST=run_chroot_version_hooks
CQ-DEPEND=CL:401381

Change-Id: Ifb7f61d0c5e2026d4c622a5b306a1a2cf4a52c08
Reviewed-on: https://chromium-review.googlesource.com/401107
Commit-Ready: Haixia Shi <hshi@chromium.org>
Tested-by: Haixia Shi <hshi@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
1 file changed