am335x: convert usb driver frome dos to unix file

Convert usb driver to unix to prevent commit problem.

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
am335x: enable USB driver

Enable USB driver support on am335x platform

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Merge pull request #17 from macpaul/master

Trying to enable usb support and fix compiling problem for am335x