usb: mbim: Add port mapper support for MBIM

Adding IOCTL call to be used by QBI. This new call
queries the required information for configuring port
mapper.

Change-Id: Iedfc9d7b5db287ddf8d5864f11aca16180b0aa8a
Signed-off-by: Danny Segal <dsegal@codeaurora.org>
Signed-off-by: Dov Levenglick <dovl@codeaurora.org>
Signed-off-by: Bar Weiner <bweiner@codeaurora.org>