Add cromo to Platform2

BUG=chromium:220003
TEST=Run ALL the trybots
CQ-DEPEND=CL:56290

Change-Id: I94d4134ccf72c7eb7429ddbedbc9d9b4bf5161b5
Reviewed-on: https://chromium-review.googlesource.com/64874
Reviewed-by: Liam McLoughlin <lmcloughlin@chromium.org>
Tested-by: Liam McLoughlin <lmcloughlin@chromium.org>
Commit-Queue: Liam McLoughlin <lmcloughlin@chromium.org>
3 files changed