kernel: kmod-firewire: fix dependencies

This fixes the following error:
firewire_core: Unknown symbol crc_itu_t (err 0)

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt@37902 3c298f89-4303-0410-b956-a3cf2f4a3e73