From: Gerd Knorr <kraxel@bytesex.org>

This patch updates a number of video4linux-related i2c modules.  There are a
number of bugfixes which accumulated over time, also some no-op i2c changes
due to merging the i2c cleanups back into my tree and tweak them to make the
modules compile on both 2.5.x and 2.4.x.