usbip: vhci_hcd: Fix usb device and sockfd leaks

vhci_hcd fails to do reset to put usb device and sockfd in the
module remove/stop paths. Fix the leak.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>