USB: media: disable tlg2300 driver

The tlg2300 driver was moved to the staging tree back in 3.19, and then
removed entirely from the tree in 4.0.  Because it breaks with an
upcoming fix for the USB power management logic, let's just disable it
from 3.18.y in case anyone is actually using it, as they really
shouldn't be anymore.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>