Revert "Remove CPU dimension for Win GCE bots"

Revert "Remove CPU dimension for Win GCE bots"

This reverts commit 25bf350d1096622e10cb9d244705c91ed309f8e6.

Reason for revert: Speculatively reverting to see if this unsticks try jobs.

Original change's description:
> Remove CPU dimension for Win GCE bots
>
> This is mainly to collapse the two groups on the capacity stats page.
>
> Bug: skia:
> Change-Id: Icc125f6fa773ebf11909b0606bc7958146da5983
> Reviewed-on: https://skia-review.googlesource.com/11417
> Reviewed-by: Kevin Lubick <kjlubick@google.com>
> Commit-Queue: Eric Boren <borenet@google.com>
>

TBR=borenet@google.com,kjlubick@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I52f01f6a915fa0ac4446bd492b9e455a07841ee9
Reviewed-on: https://skia-review.googlesource.com/11484
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Eric Boren <borenet@google.com>