Revert "Remove chromeos-amd64-generic-rel from CQ"

This reverts commit 3b04594ac61c1731192e56b6a97575150c17ae2e.

Reason for revert: builder has recovered.

Original change's description:
> Remove chromeos-amd64-generic-rel from CQ
> 
> The bot is broken at the moment.
> 
> NOTRY=true
> 
> Bug: 902806
> Change-Id: I1ee551c95617444e5ec4edbdb3d8d4fde6d7dc5f
> Reviewed-on: https://chromium-review.googlesource.com/c/1324090
> Commit-Queue: Stephen Martinis <martiniss@chromium.org>
> Reviewed-by: John Budorick <jbudorick@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#606093}

TBR=martiniss@chromium.org,bpastene@chromium.org,jbudorick@chromium.org

Change-Id: I6c4f751514d9fc67ccf4004643f2368cc5effc68
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 902806
Reviewed-on: https://chromium-review.googlesource.com/c/1324415
Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: Stephen Martinis <martiniss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606171}
1 file changed