boards: arm: nucleo_l152re: add support for spi

Defined SPI1, SPI2, and SPI3 pin controls for Nucleo-L152RE.
Defined arduino_spi.

Signed-off-by: Ali Hozhabri <ali.hozhabri@st.com>

boards/arm/nucleo_l152re/arduino_r3_connector.dtsi

@@ -37,3 +37,4 @@
 
 arduino_i2c: &i2c1 {};
 arduino_serial: &usart2 {};
+arduino_spi: &spi1 {};

boards/arm/nucleo_l152re/nucleo_l152re.dts

@@ -85,6 +85,28 @@
 	status = "okay";
 };
 
+&spi1 {
+	pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpiob 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+	status = "okay";
+};
+
+&spi2 {
+	pinctrl-0 = <&spi2_nss_pb12 &spi2_sck_pb13
+		     &spi2_miso_pb14 &spi2_mosi_pb15>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&spi3 {
+	/* SPI3 on the ST Morpho Connector CN7 pins 17, 1, 2, 3*/
+	pinctrl-0 = <&spi3_nss_pa15 &spi3_sck_pc10
+		     &spi3_miso_pc11 &spi3_mosi_pc12>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &eeprom {
 	status = "okay";
 };

boards/arm/nucleo_l152re/nucleo_l152re.yaml

@@ -10,8 +10,10 @@ flash: 512
 supported:
   - arduino_gpio
   - arduino_i2c
+  - arduino_spi
   - eeprom
   - gpio
+  - spi
   - i2c
   - uart
   - watchdog