ARM: socfpga: dts: disable the sdmmc, and uart nodes in the base arria10

Add status = "disabled" in the base DTSI for Arria10.  The SDMMC and uart
nodes should be enabled in the appropriate board file.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>

arch/arm/boot/dts/socfpga_arria10.dtsi

@@ -268,6 +268,7 @@ mmc: dwmmc0@ff808000 {
 			reg = <0xff808000 0x1000>;
 			interrupts = <0 98 IRQ_TYPE_LEVEL_HIGH>;
 			fifo-depth = <0x400>;
+			status = "disabled";
 		};
 
 		ocram: sram@ffe00000 {
@@ -324,6 +325,7 @@ uart0: serial0@ffc02000 {
 			interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			status = "disabled";
 		};
 
 		uart1: serial1@ffc02100 {
@@ -332,6 +334,7 @@ uart1: serial1@ffc02100 {
 			interrupts = <0 111 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
+			status = "disabled";
 		};
 
 		usbphy0: usbphy@0 {