ARM: dts: stm32: Enable sdio1 for stm32f769-disco

Adds SDIO related DT nodes for stm32f769-disco board.

broken-cd property is needed as it misses a pullup on board
(resistor R76 is missing).

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32f769-disco.dts

@@ -92,6 +92,13 @@
 		clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
 		clock-names = "main_clk";
 	};
+
+	mmc_vcard: mmc_vcard {
+		compatible = "regulator-fixed";
+		regulator-name = "mmc_vcard";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &cec {
@@ -108,6 +115,18 @@
 	status = "okay";
 };
 
+&sdio2 {
+	status = "okay";
+	vmmc-supply = <&mmc_vcard>;
+	cd-gpios = <&gpioi 15 GPIO_ACTIVE_HIGH>;
+	cd-inverted;
+	broken-cd;
+	pinctrl-names = "default", "opendrain";
+	pinctrl-0 = <&sdio_pins_b>;
+	pinctrl-1 = <&sdio_pins_od_b>;
+	bus-width = <4>;
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";