ARM: socfpga: vining_fpga: Update DT

Pick minor changes from the downstream DT, disable MMC, add GMAC0 node
and adjust PHY skew settings for GMAC1.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Silvio Fricke <silvio.fricke@softing.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/arch/arm/dts/socfpga_cyclone5_vining_fpga-u-boot.dtsi b/arch/arm/dts/socfpga_cyclone5_vining_fpga-u-boot.dtsi
index db55a4e..44bedd8 100644
--- a/arch/arm/dts/socfpga_cyclone5_vining_fpga-u-boot.dtsi
+++ b/arch/arm/dts/socfpga_cyclone5_vining_fpga-u-boot.dtsi
@@ -20,7 +20,7 @@
 };
 
 &mmc {
-	u-boot,dm-pre-reloc;
+	status = "disabled";
 };
 
 &qspi {