ramips: fix spidev generic nodes

Use linux,spidev compatible string.
Move MZK-DP150N spidev to spi1 node.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/ramips/dts/LINKIT7688.dts

@@ -146,7 +146,7 @@
 	spidev@1 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "spidev";
+		compatible = "linux,spidev";
 		reg = <1>;
 		spi-max-frequency = <40000000>;
 	};

target/linux/ramips/dts/MZK-DP150N.dts

@@ -67,11 +67,13 @@
 			reg = <0x50000 0x3b0000>;
 		};
 	};
+};
 
-	spidev@1 {
+&spi1 {
+	spidev@0 {
 		compatible = "linux,spidev";
 		spi-max-frequency = <10000000>;
-		reg = <1>;
+		reg = <0>;
 	};
 };
 

target/linux/ramips/dts/WRTNODE2.dtsi

@@ -57,9 +57,8 @@
 	spidev@1 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "spidev";
+		compatible = "linux,spidev";
 		reg = <1>;
-		linux,modalias = "spidev", "spidev";
 		spi-max-frequency = <10000000>;
 	};
 };