[PATCH] powerpc: Add a vga alias node for P1022

[Scott Wood]

On Fri, 2013-11-15 at 14:06 +0800, Jason Jin wrote:
> In u-boot, when set the video as console, the name 'vga' is used
> as a general name for the video device, during the fdt_fixup_stdout
> process, the 'vga' name is used to search in the dtb to setup the
> 'linux,stdout-path' node. Though the P1022 DIU is not VGA-compatible device,
> to meet the 'vga' name used in u-boot, the vga alias node is added for
> P1022 in this patch. At the same time, a display alias is also added
> so that no other components grow dependencies on the vga alias node.

Please explain this in a brief code comment (e.g. /* inaccurate vga name
for U-Boot compatibility */), not just the commit message.

-Scott