USB: serial: xr: use subsystem usb_device at probe

Use the subsystem struct usb_device pointer at probe instead of
deriving it from the interface pointer.

Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2021-01-21 11:29:15 +01:00
commit 9ffa6ec51c