dts: common: nordic: nrf54l: Add hfpll clock source

Add 128 MHz clock source and use it for uart00. Baudrate setting
must be adjusted based on uart clock source so without this
change there is wrong baudrate on uart00.

Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>

boards/native/nrf_bsim/nrf54l15bsim_nrf54l15_cpuapp.dts

@@ -83,6 +83,10 @@
 	};
 };
 
+&uart00 {
+	/delete-property/ clocks;
+};
+
 &uart20 {
 	status = "okay";
 	current-speed = <115200>;

dts/common/nordic/nrf54l20.dtsi

@@ -46,6 +46,12 @@
 			#clock-cells = <0>;
 			clock-frequency = <DT_FREQ_M(32)>;
 		};
+
+		hfpll: hfpll {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <DT_FREQ_M(128)>;
+		};
 	};
 
 	soc {
@@ -117,6 +123,7 @@
 				compatible = "nordic,nrf-uarte";
 				reg = <0x4d000 0x1000>;
 				interrupts = <77 NRF_DEFAULT_IRQ_PRIORITY>;
+				clocks = <&hfpll>;
 				status = "disabled";
 				endtx-stoptx-supported;
 				frame-timeout-supported;

dts/common/nordic/nrf54l_05_10_15.dtsi

@@ -59,6 +59,12 @@
 			#clock-cells = <0>;
 			clock-frequency = <DT_FREQ_M(32)>;
 		};
+
+		hfpll: hfpll {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <DT_FREQ_M(128)>;
+		};
 	};
 
 	soc {
@@ -138,6 +144,7 @@
 				compatible = "nordic,nrf-uarte";
 				reg = <0x4a000 0x1000>;
 				interrupts = <74 NRF_DEFAULT_IRQ_PRIORITY>;
+				clocks = <&hfpll>;
 				status = "disabled";
 				endtx-stoptx-supported;
 				frame-timeout-supported;