boards: b_u585i_iot02a: Enable spi1 on board

The spi1 is present on the Arduino connector CN13
on pins D13, 12, 11, 10.

Signed-off-by: Francois Ramu <francois.ramu@st.com>

boards/arm/b_u585i_iot02a/Kconfig.defconfig

@@ -8,4 +8,8 @@ if BOARD_B_U585I_IOT02A
 config BOARD
 	default "b_u585i_iot02a"
 
+config SPI_STM32_INTERRUPT
+	default y
+	depends on SPI
+
 endif # BOARD_B_U585I_IOT02A

boards/arm/b_u585i_iot02a/arduino_r3_connector.dtsi

@@ -34,3 +34,5 @@
 			   <21 0 &gpiob 8 0>;	/* D15 */
 	};
 };
+
+arduino_spi: &spi1 {};

boards/arm/b_u585i_iot02a/b_u585i_iot02a.dts

@@ -30,3 +30,9 @@
 	current-speed = <115200>;
 	status = "okay";
 };
+
+&spi1 {
+	pinctrl-0 = <&spi1_nss_pe12 &spi1_sck_pe13
+		     &spi1_miso_pe14 &spi1_mosi_pe15>;
+	status = "okay";
+};

boards/arm/b_u585i_iot02a/b_u585i_iot02a.yaml

@@ -8,3 +8,6 @@ toolchain:
   - xtools
 ram: 786
 flash: 2048
+supported:
+  - arduino_spi
+  - spi

boards/arm/b_u585i_iot02a/doc/index.rst

@@ -175,6 +175,8 @@ The Zephyr b_u585i_iot02a board configuration supports the following hardware fe
 +-----------+------------+-------------------------------------+
 | GPIO      | on-chip    | gpio                                |
 +-----------+------------+-------------------------------------+
+| SPI       | on-chip    | spi                                 |
++-----------+------------+-------------------------------------+
 
 
 The default configuration can be found in the defconfig file:
@@ -197,6 +199,7 @@ Default Zephyr Peripheral Mapping:
 - LD1 : PH7
 - LD2 : PH6
 - user button : PC13
+- SPI1 NSS/SCK/MISO/MOSI : PE12/P13/P14/P15 (Arduino SPI)
 
 System Clock
 ------------