[U-Boot] usb: dwc2: does not compile in 2016-rc3 when updating from -rc1.

Hi!

After updating from 2016-rc1, I get this compile error:

CC common/main.o drivers/usb/host/dwc2.c: In function 'usb_lowlevel_init': drivers/usb/host/dwc2.c:1028:40: error: 'CONFIG_USB_DWC2_REG_ADDR' undeclared (first use in this function) priv->regs = (struct dwc2_core_regs *)CONFIG_USB_DWC2_REG_ADDR; ^ make mrproper socfpga_cyclone5_config

Fixes the problem.

Pavel