Add new babysitter slaves for Broadwell NUCs and Pixel C.
Add new babysitter slaves for Broadwell NUCs and Pixel C.

Builders and slaves added in https://codereview.chromium.org/2471543005

BUG=skia:

Change-Id: I61e2eeea247c4e2cc4efbbd99e1f0e150daef708
Reviewed-on: https://skia-review.googlesource.com/4319
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot