arm64: dts: qcom: sc7280: Mark SDHCI hosts as cache-coherent

The SDHCI hosts on SC7280 are cache-coherent, just like on most fairly
recent Qualcomm SoCs. Mark them as such.

Fixes: 298c81a ("arm64: dts: qcom: sc7280: Add nodes for eMMC and SD card")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231218-topic-7280_dmac_sdhci-v1-1-97af7efd64a1@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: konradybcio

arch/arm64/boot/dts/qcom/sc7280.dtsi

@@ -1000,6 +1000,7 @@
 
 			bus-width = <8>;
 			supports-cqe;
+			dma-coherent;
 
 			qcom,dll-config = <0x0007642c>;
 			qcom,ddr-config = <0x80040868>;
@@ -3458,6 +3459,7 @@
 			operating-points-v2 = <&sdhc2_opp_table>;
 
 			bus-width = <4>;
+			dma-coherent;
 
 			qcom,dll-config = <0x0007642c>;