Merge https://source.denx.de/u-boot/custodians/u-boot-sunxi

This contains the fix to bring back the SD card as MMC0. In the long run
we are looking into a more robust solution, but for now we need to fix
this, as this breaks the user experience left, right, and centre.
Also add the one MAINTAINERS path addition from Samuel.

MAINTAINERS

@@ -478,6 +478,9 @@ F:	arch/arm/cpu/armv7/sunxi/
 F:	arch/arm/include/asm/arch-sunxi/
 F:	arch/arm/mach-sunxi/
 F:	board/sunxi/
+F:	drivers/clk/sunxi/
+F:	drivers/phy/allwinner/
+F:	drivers/video/sunxi/
 
 ARM TEGRA
 M:	Tom Warren <twarren@nvidia.com>

arch/arm/dts/sunxi-u-boot.dtsi

@@ -12,6 +12,7 @@
 
 / {
 	aliases {
+		mmc0 = &mmc0;
 		mmc1 = &mmc2;
 	};