arm64: dts: qcom: sm8150: add SPI nodes

Add missing SPI nodes for SM8150.
Signed-off-by: Felipe Balbi <felipe.balbi@microsoft.com>
Reviewed-by: Caleb Connolly <caleb@connolly.tech>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210416103225.1872145-1-balbi@kernel.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>