add caroline and kevin boards to rotation builder.

Bug=None
Test=The boards are added.

Change-Id: Ie8619c84c0e4d8377153d8c14e3b3f5f7a082723
Reviewed-on: https://chromium-review.googlesource.com/434118
Commit-Ready: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
Reviewed-by: Caroline Tice <cmtice@chromium.org>
1 file changed