V4L/DVB (12396): [patch] Added Support for STK7700D (DVB)

This patch adds support for the STK7700D USB-DVB-Device.

lsusb identifies it as:
idVendor           0x1164 YUAN High-Tech Development Co., Ltd
idProduct          0x1efc
 iProduct                2 STK7700D

The device is build into a Samsung R55-T5500 notebook.

Signed-off-by: Pete Hildebrandt <send2ph@googlemail.com>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>