u-root now works on ARM
u-root now works on ARM

Need to clean up the ramfs tool to make it more usable. But it works.

And, wow, go builds are SLOW on the cubieboard.wq

Signed-off-by: Ronald G. Minnich <f569d0af9a3481c4007b95c7180d6c41009f2513@gmail.com>

rminnich/u-root,GanShun/u-root,hugelgupf/u-root,hugelgupf/u-root,GanShun/u-root,u-root/u-root,u-root/u-root,hugelgupf/u-root,u-root/u-root,GanShun/u-root,rminnich/u-root,rminnich/u-root,hugelgupf/u-root,rminnich/u-root