arm64: dts: qcom: add minimal DTS for Microsoft Surface Duo 2

This is a minimal devicetree for Microsoft Surface Duo 2 with SM8350
Chipset

Signed-off-by: Katherine Perez <kaperez@linux.microsoft.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211209183246.842880-2-kaperez@linux.microsoft.com