usb: add support for ULPI/SERIAL/HSIC PHY modes

Import usb_phy_interface enum values and DT match strings from the Linux
kernel.

Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 2a47f40..43564c9 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -80,6 +80,9 @@
 	[USBPHY_INTERFACE_MODE_UNKNOWN]	= "",
 	[USBPHY_INTERFACE_MODE_UTMI]	= "utmi",
 	[USBPHY_INTERFACE_MODE_UTMIW]	= "utmi_wide",
+	[USBPHY_INTERFACE_MODE_ULPI]	= "ulpi",
+	[USBPHY_INTERFACE_MODE_SERIAL]	= "serial",
+	[USBPHY_INTERFACE_MODE_HSIC]	= "hsic",
 };
 
 enum usb_phy_interface usb_get_phy_mode(ofnode node)