boards: adi: apard32690: Configure pmod spi pins

Configures pins for the SPI instance attached to the Pmod connector to
enable using this board with the pmod_acl shield.

Signed-off-by: Maureen Helm <maureen.helm@analog.com>

boards/adi/apard32690/apard32690_max32690_m4.dts

@@ -110,6 +110,28 @@ arduino_spi: &spi1 {
 	pinctrl-names = "default";
 };
 
+&spi4a_miso_p1_2 {
+	power-source = <MAX32_VSEL_VDDIOH>;
+};
+
+&spi4a_mosi_p1_1 {
+	power-source = <MAX32_VSEL_VDDIOH>;
+};
+
+&spi4a_sck_p1_3 {
+	power-source = <MAX32_VSEL_VDDIOH>;
+};
+
+&spi4a_ss0_p1_0 {
+	power-source = <MAX32_VSEL_VDDIOH>;
+};
+
+pmod_spi: &spi4 {
+	pinctrl-0 = <&spi4a_miso_p1_2 &spi4a_mosi_p1_1 &spi4a_sck_p1_3
+		     &spi4a_ss0_p1_0>;
+	pinctrl-names = "default";
+};
+
 &spi3a_miso_p0_20 {
 	power-source = <MAX32_VSEL_VDDIOH>;
 };

boards/adi/apard32690/apard32690_max32690_m4.yaml

@@ -10,6 +10,7 @@ toolchain:
 supported:
   - arduino_serial
   - arduino_spi
+  - pmod_spi
   - gpio
   - serial
   - spi