staging: octeon-usb: use correct function for hcd cleanup

Use usb_put_hdc to release hdc allocated by usb_create_hcd.
This is needed to handle sub-allocations and HCD sharing correctly.

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>