ARM: dts: stm32: Add I2C2/5 support for STM32MP157C-EV1

Add I2C1/5 support for STM32MP157C evaluation daughter on evaluation
mother board.
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157c-ev1.dts

@@ -20,6 +20,22 @@ aliases {
 	};
 };
 
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	status = "okay";
+};
+
+&i2c5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c5_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	status = "okay";
+};
+
 &timers2 {
 	status = "disabled";
 	pwm {