Use in tree version of cake for kernels 4.19+ and backport features from
later kernel versions to 4.19.
Unfortunately PROVIDES dependency handling produces bogus circular
dependency warnings so whilst this package and kmod-sched-cake-oot
should be able to PROVIDE kmod-sched-cake this doesn't work.
Instead, remove the PROVIDES option and modify package sqm-scripts to
depend on the correct module independently.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
CAKE made it to kernel 4.19 and since OpenWrt now at kernel 4.19 we can
drop the out of tree cake package in base repository.
Add kmod-sched-cake to netsupport so package dependencies are still met.
Similarly CAKE is retained as an optional qdisc module to avoid base
scheduler package size implications.
Backport upstream patches from k5.1 to address some small bugs and
support fwmark usage.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>