ARM: dts: r8a7779: Use R-Car SDHI Gen1 fallback compat string

Use newly added R-Car SDHI Gen1 fallback compat string
in the DT of the r8a7779 SoC.

This should have no run-time effect as the driver matches against
the per-SoC compat string before considering the fallback compat string.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7779.dtsi

@@ -355,7 +355,8 @@ sata: sata@fc600000 {
 	};
 
 	sdhi0: sd@ffe4c000 {
-		compatible = "renesas,sdhi-r8a7779";
+		compatible = "renesas,sdhi-r8a7779",
+			     "renesas,rcar-gen1-sdhi";
 		reg = <0xffe4c000 0x100>;
 		interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7779_CLK_SDHI0>;
@@ -364,7 +365,8 @@ sdhi0: sd@ffe4c000 {
 	};
 
 	sdhi1: sd@ffe4d000 {
-		compatible = "renesas,sdhi-r8a7779";
+		compatible = "renesas,sdhi-r8a7779",
+			     "renesas,rcar-gen1-sdhi";
 		reg = <0xffe4d000 0x100>;
 		interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7779_CLK_SDHI1>;
@@ -373,7 +375,8 @@ sdhi1: sd@ffe4d000 {
 	};
 
 	sdhi2: sd@ffe4e000 {
-		compatible = "renesas,sdhi-r8a7779";
+		compatible = "renesas,sdhi-r8a7779",
+			     "renesas,rcar-gen1-sdhi";
 		reg = <0xffe4e000 0x100>;
 		interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7779_CLK_SDHI2>;
@@ -382,7 +385,8 @@ sdhi2: sd@ffe4e000 {
 	};
 
 	sdhi3: sd@ffe4f000 {
-		compatible = "renesas,sdhi-r8a7779";
+		compatible = "renesas,sdhi-r8a7779",
+			     "renesas,rcar-gen1-sdhi";
 		reg = <0xffe4f000 0x100>;
 		interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7779_CLK_SDHI3>;