boards: shields: mikroe_mcp251xfd_click: rearrange dts and use macros

Rearrange the devicetree overlays for the MikroElektronika MCP251xFD
shields to better align with node and property order used in the rest of
the tree.

Use "can" as devicetree node name as recommended in the Devicetree
specification.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>

Author: henrikbrixandersen

boards/shields/mikroe_mcp251xfd_click/mikroe_mcp2517fd_click.overlay

@@ -4,22 +4,24 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <freq.h>
+
+/ {
+	chosen {
+		zephyr,canbus = &mcp2517fd_mikroe_mcp2517fd_click;
+	};
+};
+
 &mikrobus_spi {
 	cs-gpios = <&mikrobus_header 2 GPIO_ACTIVE_LOW>;
 
-	mcp2517fd_mikroe_mcp2517fd_click: mcp2517fd@0 {
+	mcp2517fd_mikroe_mcp2517fd_click: can@0 {
 		compatible = "microchip,mcp251xfd";
-		status = "okay";
-
-		spi-max-frequency = <18000000>;
-		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
 		reg = <0x0>;
-		osc-freq = <40000000>;
-	};
-};
-
-/ {
-	chosen {
-		zephyr,canbus = &mcp2517fd_mikroe_mcp2517fd_click;
+		spi-max-frequency = <DT_FREQ_M(18)>;
+		osc-freq = <DT_FREQ_M(40)>;
+		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
+		status = "okay";
 	};
 };

boards/shields/mikroe_mcp251xfd_click/mikroe_mcp251863_click.overlay

@@ -4,22 +4,24 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <freq.h>
+
+/ {
+	chosen {
+		zephyr,canbus = &mcp251863_mikroe_mcp251863_click;
+	};
+};
+
 &mikrobus_spi {
 	cs-gpios = <&mikrobus_header 2 GPIO_ACTIVE_LOW>;
 
-	mcp251863_mikroe_mcp251863_click: mcp251863@0 {
+	mcp251863_mikroe_mcp251863_click: can@0 {
 		compatible = "microchip,mcp251xfd";
-		status = "okay";
-
-		spi-max-frequency = <18000000>;
-		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
 		reg = <0x0>;
-		osc-freq = <40000000>;
-	};
-};
-
-/ {
-	chosen {
-		zephyr,canbus = &mcp251863_mikroe_mcp251863_click;
+		spi-max-frequency = <DT_FREQ_M(18)>;
+		osc-freq = <DT_FREQ_M(40)>;
+		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
+		status = "okay";
 	};
 };

boards/shields/mikroe_mcp251xfd_click/mikroe_mcp2518fd_click.overlay

@@ -3,22 +3,24 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <freq.h>
+
+/ {
+	chosen {
+		zephyr,canbus = &mcp2518fd_mikroe_mcp2518fd_click;
+	};
+};
+
 &mikrobus_spi {
 	cs-gpios = <&mikrobus_header 2 GPIO_ACTIVE_LOW>;
 
-	mcp2518fd_mikroe_mcp2518fd_click: mcp2518fd@0 {
+	mcp2518fd_mikroe_mcp2518fd_click: can@0 {
 		compatible = "microchip,mcp251xfd";
-		status = "okay";
-
-		spi-max-frequency = <18000000>;
-		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
 		reg = <0x0>;
-		osc-freq = <40000000>;
-	};
-};
-
-/ {
-	chosen {
-		zephyr,canbus = &mcp2518fd_mikroe_mcp2518fd_click;
+		spi-max-frequency = <DT_FREQ_M(18)>;
+		osc-freq = <DT_FREQ_M(40)>;
+		int-gpios = <&mikrobus_header 7 GPIO_ACTIVE_LOW>;
+		status = "okay";
 	};
 };