libpayload: Add dwc2 usb driver

BUG=chrome-os-partner:29778
TEST=emerge-veyron libpayload

Change-Id: I33f312a939e600b8f4e50a092bb61c5d6bc6d741
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 39ffe53336a2a3b2baa067cdd3dccca5ae93f68e
Original-Change-Id: Idad1ad165fd44df635a0cb13bfec6fada1378bc8
Original-Signed-off-by: huang lin <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/211053
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/9453
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc
index f3b147d..4aa71d3 100644
--- a/payloads/libpayload/drivers/Makefile.inc
+++ b/payloads/libpayload/drivers/Makefile.inc
@@ -100,6 +100,8 @@
 libc-$(CONFIG_LP_USB_XHCI) += usb/xhci_rh.c
 libc-$(CONFIG_LP_USB_HID) += usb/usbhid.c
 libc-$(CONFIG_LP_USB_MSC) += usb/usbmsc.c
+libc-$(CONFIG_LP_USB_DWC2) += usb/dwc2.c
+libc-$(CONFIG_LP_USB_DWC2) += usb/dwc2_rh.c
 
 # used by both USB HID and keyboard
 libc-y += hid.c