linux-phytec-fsl

usb: gadget: mv_udc: use devm_xxx for probe

use devm_xxx for udc driver probe. So we do need care about
the resources release in driver remove or failure handling
in driver probe.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>