Add a new SKU variant.  This is a pick from the downstream tree that
is the current source of truth for this platform.

Link: https://crrev.com/c/2386997Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200908133037.1.Ia98a6b938453254e360c4a9fa253d2d6807dff3f@changeidSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>