ARM: dts: r8a73a4: Use SoC-specific compat string for mmcif

Use the SoC-specific compat string for mmcif in DT for the r8a73a4 SoC.
This is in keeping with the use of compat strings for mmcif for other
Renesas ARM based SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/boot/dts/r8a73a4.dtsi

@@ -440,7 +440,7 @@ sdhi2: sd@ee140000 {
 	};
 
 	mmcif0: mmc@ee200000 {
-		compatible = "renesas,sh-mmcif";
+		compatible = "renesas,mmcif-r8a73a4", "renesas,sh-mmcif";
 		reg = <0 0xee200000 0 0x80>;
 		interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A73A4_CLK_MMCIF0>;
@@ -450,7 +450,7 @@ mmcif0: mmc@ee200000 {
 	};
 
 	mmcif1: mmc@ee220000 {
-		compatible = "renesas,sh-mmcif";
+		compatible = "renesas,mmcif-r8a73a4", "renesas,sh-mmcif";
 		reg = <0 0xee220000 0 0x80>;
 		interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A73A4_CLK_MMCIF1>;