dts: st: l4: add sai1 node

Add SAI1 A & B nodes for STM32L4xx series

Signed-off-by: Mario Paja <mariopaja@hotmail.com>

Author: mariopaja

dts/arm/st/l4/stm32l4.dtsi

@@ -567,6 +567,30 @@
 		i2c = <&i2c3>;
 		status = "disabled";
 	};
+
+	sai1_a: sai1@40015404 {
+		compatible = "st,stm32-sai";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x40015404 0x20>;
+		clocks = <&rcc STM32_CLOCK(APB2, 22U)>,
+				 <&rcc STM32_SRC_PLLSAI1_P SAI1_SEL(0)>;
+		dmas = <&dma2 1 37 (STM32_DMA_MODE_NORMAL | STM32_DMA_PRIORITY_HIGH |
+			STM32_DMA_16BITS)>;
+		status = "disabled";
+	};
+
+	sai1_b: sai1@40015424 {
+		compatible = "st,stm32-sai";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x40015424 0x20>;
+		clocks = <&rcc STM32_CLOCK(APB2, 22U)>,
+				 <&rcc STM32_SRC_PLLSAI1_P SAI1_SEL(0)>;
+		dmas = <&dma2 2 38 (STM32_DMA_MODE_NORMAL | STM32_DMA_PRIORITY_HIGH |
+			STM32_DMA_16BITS)>;
+		status = "disabled";
+	};
 };
 
 &nvic {