samples: i2s: output: add nucleo_f767zi

Add nucleo_f767zi board in samples/drivers/i2s/output

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

Author: mariopaja

drivers/i2s/i2s_stm32_sai.c

@@ -407,7 +407,6 @@ static int i2s_stm32_sai_initialize(const struct device *dev)
 static void dma_callback(const struct device *dma_dev, void *arg, uint32_t channel, int status)
 {
 	DMA_HandleTypeDef *hdma = arg;
-
 	ARG_UNUSED(dma_dev);
 
 	if (status < 0) {

samples/drivers/i2s/output/boards/nucleo_f767zi.conf

@@ -0,0 +1 @@
+CONFIG_HEAP_MEM_POOL_SIZE=4192

samples/drivers/i2s/output/boards/nucleo_f767zi.overlay

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2025 Mario Paja
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		i2s-tx = &sai1_b;
+	};
+};
+
+/* 44.27KHz (0.38% Error) */
+&pllsai{
+	div-m = <4>;
+	mul-n = <119>;
+	div-q = <7>;
+	div-divq = <3>;
+	clocks = <&clk_hse>;
+	status = "okay";
+};
+
+&sai1_b {
+	pinctrl-0 = <&sai1_mclk_b_pf7 &sai1_sd_b_pe3 &sai1_fs_b_pf9 &sai1_sck_b_pf8>;
+	pinctrl-names = "default";
+	status = "okay";
+	mclk-enable;
+	mclk-divider = "div-256";
+	dma-names = "tx";
+};
+
+&dma2 {
+	status = "okay";
+};