boards: nrf7120pdk: Add Wi-Fi support

Add DTS entries necessary for Wi-Fi driver to work.

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

boards/nordic/nrf7120pdk/nrf7120_cpuapp_common.dtsi

@@ -16,6 +16,7 @@
 		zephyr,uart-mcumgr = &uart20;
 		zephyr,flash = &cpuapp_mram;
 		zephyr,ieee802154 = &ieee802154;
+		zephyr,wifi = &wlan0;
 	};
 };
 
@@ -128,3 +129,7 @@
 &adc {
 	status = "okay";
 };
+
+&wifi {
+	status = "okay";
+};

dts/common/nordic/nrf7120_enga.dtsi

@@ -844,4 +844,23 @@
 			#mbox-cells = <1>;
 		};
 	};
+
+	wifi: wifi {
+		compatible = "nordic,wifi71";
+		status = "disabled";
+
+		wifi-max-tx-pwr-2g-dsss = <21>;
+		wifi-max-tx-pwr-2g-mcs0 = <16>;
+		wifi-max-tx-pwr-2g-mcs7 = <16>;
+		wifi-max-tx-pwr-5g-low-mcs0 = <13>;
+		wifi-max-tx-pwr-5g-low-mcs7 = <13>;
+		wifi-max-tx-pwr-5g-mid-mcs0 = <13>;
+		wifi-max-tx-pwr-5g-mid-mcs7 = <13>;
+		wifi-max-tx-pwr-5g-high-mcs0 = <12>;
+		wifi-max-tx-pwr-5g-high-mcs7 = <12>;
+
+		wlan0: wlan0 {
+			compatible = "nordic,wlan";
+		};
+	};
 };