arm64: dts: qcom: sc8280xp: fix UFS DMA coherency

The SC8280XP UFS controllers are cache coherent and must be marked as
such in the devicetree to avoid potential data corruption.

Fixes: 152d1faf ("arm64: dts: qcom: add SC8280XP platform")
Cc: stable@vger.kernel.org      # 6.0
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221205100837.29212-3-johan+linaro@kernel.org