main/postmarketos-base-downstream: add disable-udev-v4l subpackage

Breakout from discussion in https://gitlab.com/postmarketOS/pmaports/-/merge_requests/4721#note_1729834325.

Currently around 20 devices overrides the v4l udev rule. Lets create a package that these can depend on instead.

For most devices this MR should not introduce any functional changes, with exceptions being sony-nicki, sony-yuga and lg-mako. These device packages support both mainline and downstream kernels, and I have moved the v4l fix to the downstream kernel subpackage, as I think issue should only occur with the downstream kernel (I don't have any of these three devices to actually verify this though).

Closes https://gitlab.com/postmarketOS/pmaports/-/issues/1149