ARM: add USB device support to pcm037

Add OTG device definition and resources to i.MX31 and a pure USB device mode
support to the pcm037 board.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
3 files changed