usbvision: fix crash on detecting device with invalid configuration

usbvision: fix crash on detecting device with invalid configuration

The usbvision driver crashes when a specially crafted usb device with invalid
number of interfaces or endpoints is detected. This fix adds checks that the
device has proper configuration expected by the driver.

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name media-usbvision-fix-crash-on-detecting-device-with-i.patch