Add jobs for Samsung Chromebook Plus

Also refactor the cipd package used to compile these, as it can be reused.

Bug: skia:
NOTRY=true
Change-Id: I53cf5b7fdfcb8cafd50791a0beaaf557fafa65c3
Reviewed-on: https://skia-review.googlesource.com/13252
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
15 files changed