[cpia] Unified patch for recent kernels

[Claudio Matsuoka]

I'm installing the CPiA module in my Debian slink box but for some
reason the bundled patch(1) complains about "malformed patch at line
43". I applied it by hand over 2.3.39 but it didn't work -- it seems
that videodev didn't include CPiA support.

Now I'm installing a vanilla 2.3.40, and to avoid the tedious work
of manual patching (and possible errors), is an unified diff available
for one of the recent kernels?