ath79: mikrotik: extract common bits for RB951x-2HnD devices

Mikrotik RouterBOARD 951Ui-2HnD and Mikrotik RouterBOARD RB951G-2HnD are
very similar devices.  Extract the DTS bits that are identical for these
two boards to a separate DTSI file.

Signed-off-by: Michał Kępień <openwrt@kempniu.pl>

target/linux/ath79/dts/ar9344_mikrotik_routerboard-951ui-2hnd.dts

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 
-#include "ar9344_mikrotik_routerboard.dtsi"
+#include "ar9344_mikrotik_routerboard-951x-2hnd.dtsi"
 
 / {
 	compatible = "mikrotik,routerboard-951ui-2hnd", "qca,ar9344";
@@ -59,77 +59,6 @@
 	};
 };
 
-&gpio {
-	nand_power {
-		gpio-hog;
-		gpios = <14 GPIO_ACTIVE_LOW>;
-		output-high;
-	};
-};
-
-&nand {
-	status = "okay";
-
-	nand-ecc-mode = "soft";
-	qca,nand-swap-dma;
-
-	partitions {
-		compatible = "fixed-partitions";
-		#address-cells = <1>;
-		#size-cells = <1>;
-
-		partition@0 {
-			label = "booter";
-			reg = <0x0000000 0x0040000>;
-			read-only;
-		};
-
-		partition@40000 {
-			label = "kernel";
-			reg = <0x0040000 0x03c0000>;
-		};
-
-		partition@400000 {
-			label = "ubi";
-			reg = <0x0400000 0x7c00000>;
-		};
-	};
-};
-
-&spi {
-	status = "okay";
-
-	flash@0 {
-		compatible = "jedec,spi-nor";
-		reg = <0>;
-		spi-max-frequency = <25000000>;
-
-		partitions {
-			compatible = "mikrotik,routerboot-partitions";
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			partition@0 {
-				label = "routerboot";
-				reg = <0x0 0x0>;
-				read-only;
-			};
-
-			hard_config: hard_config {
-				read-only;
-			};
-
-			bios {
-				size = <0x1000>;
-				read-only;
-			};
-
-			soft_config {
-			};
-		};
-	};
-};
-
 &eth0 {
 	phy-handle = <&swphy4>;
 
@@ -143,11 +72,3 @@
 &wmac {
 	qca,led-pin = /bits/ 8 <11>;
 };
-
-&usb {
-	status = "okay";
-};
-
-&usb_phy {
-	status = "okay";
-};

target/linux/ath79/dts/ar9344_mikrotik_routerboard-951x-2hnd.dtsi

@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar9344_mikrotik_routerboard.dtsi"
+
+&gpio {
+	nand_power {
+		gpio-hog;
+		gpios = <14 GPIO_ACTIVE_LOW>;
+		output-high;
+	};
+};
+
+&nand {
+	status = "okay";
+
+	nand-ecc-mode = "soft";
+	qca,nand-swap-dma;
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "booter";
+			reg = <0x0000000 0x0040000>;
+			read-only;
+		};
+
+		partition@40000 {
+			label = "kernel";
+			reg = <0x0040000 0x03c0000>;
+		};
+
+		partition@400000 {
+			label = "ubi";
+			reg = <0x0400000 0x7c00000>;
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "mikrotik,routerboot-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "routerboot";
+				reg = <0x0 0x0>;
+				read-only;
+			};
+
+			hard_config: hard_config {
+				read-only;
+			};
+
+			bios {
+				size = <0x1000>;
+				read-only;
+			};
+
+			soft_config {
+			};
+		};
+	};
+};
+
+&usb {
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};