imx8mq_evk: Enable the USB3.0 host port

Setup USB clock in board codes, and enable the DWC3 XHCI and
PHY drivers to make USB3.0 host port working on i.MX8MQ EVK.

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Patrick Wildt <patrick@blueri.se>
diff --git a/board/freescale/imx8mq_evk/imx8mq_evk.c b/board/freescale/imx8mq_evk/imx8mq_evk.c
index 93da67d..e394805 100644
--- a/board/freescale/imx8mq_evk/imx8mq_evk.c
+++ b/board/freescale/imx8mq_evk/imx8mq_evk.c
@@ -86,6 +86,10 @@
 	setup_fec();
 #endif
 
+#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_DWC3)
+	init_usb_clk();
+#endif
+
 	return 0;
 }
 
diff --git a/configs/imx8mq_evk_defconfig b/configs/imx8mq_evk_defconfig
index 1df4192..f4d5397 100644
--- a/configs/imx8mq_evk_defconfig
+++ b/configs/imx8mq_evk_defconfig
@@ -53,3 +53,12 @@
 CONFIG_DM_RESET=y
 CONFIG_MXC_UART=y
 CONFIG_DM_THERMAL=y
+CONFIG_CMD_USB=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
+CONFIG_DM_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_DWC3=y
+CONFIG_PHY=y
+CONFIG_PHY_IMX8MQ_USB=y