drivers: spi: Add MAX32690 SPI driver

Add SPI driver for Analog Devices MAX32690 MCU. Supports interrupt-based
transfers.

Co-Authored-By: Mert Vatansever <mert.vatansever@analog.com>
Co-Authored-By: Sadik Ozer <sadik.ozer@analog.com>
Co-Authored-By: Rob Cornall <rob.cornall@analog.com>
Signed-off-by: Tahsin Mutlugun <Tahsin.Mutlugun@analog.com>

dts/bindings/spi/adi,max32-spi.yaml

@@ -0,0 +1,21 @@
+# Copyright (c) 2024 Analog Devices, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+description: ADI MAX32 SPI
+
+include:
+  - name: spi-controller.yaml
+  - name: pinctrl-device.yaml
+
+compatible: "adi,max32-spi"
+
+properties:
+  reg:
+    required: true
+
+  interrupts:
+    required: true
+
+  pinctrl-0:
+    type: phandles
+    required: true