arm64: dts: qcom: sc7180: Add quackingstick dts files

Quackingstick is a trogdor-based board. These dts files are copies from
the downstream Chrome OS 5.4 kernel, but with downstream bits removed.

Signed-off-by: Joseph S. Barrera III <joebar@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220625183538.v14.2.I0977b1a08830d0caa8bfb1bdedb4ecceac709a7f@changeid