cgroupfs-mount: Replaced dependency with cgroup config option

Signed-off-by: Gerard Ryan <G.M0N3Y.2503@gmail.com>

* Added warning logging
* Added missing default kmod
* Added missing kernel feature for IO scheduling

Signed-off-by: Gerard Ryan <G.M0N3Y.2503@gmail.com>

Fix that KERNEL_CGROUPS is enabled (selected) automatically along with
cgroups-mount

Replace "if PACKAGE_docker-ce" with a menu to avoid circular denpendency
issue involving PACKAGE_docker-ce, PACKAGE_cgroups-mount and
KERNEL_CGRUOPS

docker-ce, lxc: replace KERNEL_LXC_MISC with more specific options

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

Signed-off-by: Gerard Ryan <G.M0N3Y.2503@gmail.com>