backports: update sch_fq_codel_core.c

This brings sch_fq_codel_core.c to the version used in kernel 3.14-rc1.
Most of the changes were done many kernel versions before 3.14-rc1, but
in kernel 3.14-rc1 net_random() was removed and not it does not even
compile any more.

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