arm: mvebu: clearfog: enable XHCI USB

Enable the driver by default for the clearfog boards since the external
port is configured for XHCI.

Signed-off-by: Jon Nettleton <jon@solid-run.com>
[baruch: split from the SoC setup patch]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/clearfog_defconfig b/configs/clearfog_defconfig
index fa9f04a..3de2043 100644
--- a/configs/clearfog_defconfig
+++ b/configs/clearfog_defconfig
@@ -43,5 +43,6 @@
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
-CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MVEBU=y
 CONFIG_USB_STORAGE=y