tests: drivers: dma: loop_transfer: add stm32h750b_dk config

CONFIG_DMA_LOOP_TRANSFER_CHANNEL_NR=3

CONFIG_DMA_LOOP_TRANSFER_NUMBER_OF_DMAS=2

# Required by BDMA which only has access to

# SRAM4 & the driver excpects it to be uncached as well.

# Other DMAs have access to SRAM4 as well.

CONFIG_CODE_DATA_RELOCATION=y

CONFIG_DMA_LOOP_TRANSFER_RELOCATE_SECTION="SRAM4"

/*

 * Copyright (c) 2024 Abderrahmane JARMOUNI

 *

 * SPDX-License-Identifier: Apache-2.0

 */

&sram4 {

	zephyr,memory-attr = <DT_MEM_ARM_MPU_RAM_NOCACHE>;

	zephyr,memory-region = "SRAM4";

	status = "okay";

};

&dma1 {

	status = "okay";

};

&dma2 {

	status = "okay";

};

tst_dma0: &dmamux1 {

	status = "okay";

};

&bdma1 {

	status = "okay";

};

tst_dma1: &dmamux2 {

	status = "okay";

};