ARM: dts: stm32: Add SDIO controller for stm32f429

stm32f429 embeds ARM_PL180 sdi IP, adds SDIO controller
node to allow MMC support.
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32f429.dtsi

@@ -511,6 +511,17 @@ adc3: adc@200 {
 			};
 		};
 
+		sdio: sdio@40012c00 {
+			compatible = "arm,pl180", "arm,primecell";
+			arm,primecell-periphid = <0x00880180>;
+			reg = <0x40012c00 0x400>;
+			clocks = <&rcc 0 STM32F4_APB2_CLOCK(SDIO)>;
+			clock-names = "apb_pclk";
+			interrupts = <49>;
+			max-frequency = <48000000>;
+			status = "disabled";
+		};
+
 		syscfg: system-config@40013800 {
 			compatible = "syscon";
 			reg = <0x40013800 0x400>;