boards: shields: add stm32h747i_disco support for st_b_cams_omv_mb1683

Add the overlay in order to use the st_b_cams_omv_mb1683 on the
stm32h747i_disco board.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

boards/shields/st_b_cams_omv_mb1683/boards/stm32h747i_disco_stm32h747xx_m7.overlay

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2025 STMicroelectronics.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ */
+
+/* Reset cannot be controlled on the STM32H747I-DISCO */
+&ov5640 {
+	/delete-property/ reset-gpios;
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dmamux1 {
+	status = "okay";
+};