USB: serial: option: add support for TP-Link LTE module

commit 837ddc4793a69b256ac5e781a5e729b448a8d983 upstream.

This commit adds support for TP-Link LTE mPCIe module is used
in in TP-Link MR200v1, MR6400v1 and v2 routers.

Signed-off-by: Henryk Heisig <hyniu@o2.pl>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>