phy: Add support for the Apple Type-C PHY

This is merely a dummy driver that makes sure the DWC3 XHCI driver
finds its reset and PHY controllers.  We rely on iBoot to set up
the PHY for us.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
diff --git a/configs/apple_m1_defconfig b/configs/apple_m1_defconfig
index 7555609..d58a903 100644
--- a/configs/apple_m1_defconfig
+++ b/configs/apple_m1_defconfig
@@ -16,6 +16,7 @@
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_USB_XHCI_PCI=y
+CONFIG_USB_DWC3=y
 CONFIG_USB_KEYBOARD=y
 CONFIG_SYS_WHITE_ON_BLACK=y
 CONFIG_NO_FB_CLEAR=y