usb: gadget: s3c-hsotg: add snps,dwc2 compatible string
usb: gadget: s3c-hsotg: add snps,dwc2 compatible string

Enable support for the dwc2 binding.

Signed-off-by: Matt Porter <c1d287ff3802a4aab0e3770389ea24a33314618b@linaro.org>
Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs