Build all of the can support as modules, otherwise the kernel image is
changed when a can kernel package is selected, because the can protocol
is then built in into the kernel image.
Signed-off-by: Jan Kardell <jan.kardell@telliq.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39989 3c298f89-4303-0410-b956-a3cf2f4a3e73