rootfs: fix moron bug (Dev->dev, etc.)
rootfs: fix moron bug (Dev->dev, etc.)

In the process of exporting variables I screwed up some
strings. Next time I'll use the tools. Sorry.

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

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