ARM: zynq: Enable u-boot,dm-pre-reloc for sdhci

Enable u-boot,dm-pre-reloc for sdhci for zc706, zed and zybo.
And create aliases for it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/zynq-zc706.dts

@@ -18,6 +18,7 @@
 		i2c0 = &i2c0;
 		serial0 = &uart1;
 		spi0 = &qspi;
+		mmc0 = &sdhci0;
 	};
 
 	memory {
@@ -291,6 +292,7 @@
 };
 
 &sdhci0 {
+	u-boot,dm-pre-reloc;
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdhci0_default>;

arch/arm/dts/zynq-zed.dts

@@ -17,6 +17,7 @@
 		ethernet0 = &gem0;
 		serial0 = &uart1;
 		spi0 = &qspi;
+		mmc0 = &sdhci0;
 	};
 
 	memory {
@@ -50,6 +51,7 @@
 };
 
 &sdhci0 {
+	u-boot,dm-pre-reloc;
 	status = "okay";
 };
 

arch/arm/dts/zynq-zybo.dts

@@ -16,6 +16,7 @@
 	aliases {
 		ethernet0 = &gem0;
 		serial0 = &uart1;
+		mmc0 = &sdhci0;
 	};
 
 	memory {
@@ -45,6 +46,7 @@
 };
 
 &sdhci0 {
+	u-boot,dm-pre-reloc;
 	status = "okay";
 };