arm64: dts: qcom: ipq8074: add dedicated SDHCI compatible

Add dedicated compatible for the SDHCI MMC controller, because usage of
generic qcom,sdhci-msm-v4 compatible alone is deprecated.

Cc: Chukun Pan <[e-mail]>
Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Konrad Dybcio <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bjorn Andersson <[e-mail]>

arch/arm64/boot/dts/qcom/ipq8074.dtsi

···
 		};
 
 		sdhc_1: mmc@7824900 {
-			compatible = "qcom,sdhci-msm-v4";
+			compatible = "qcom,ipq8074-sdhci", "qcom,sdhci-msm-v4";
 			reg = <0x7824900 0x500>, <0x7824000 0x800>;
 			reg-names = "hc", "core";