Resolves CIS benchmark 5.2.8 rule by adding capabilities with
explicitly defined empty "add" list (where it needed) and with
NET_RAW capability in "drop" list.
5.2.8 Minimize the admission of containers with added capabilities
Containers must drop the `NET_RAW` capability and are not permitted
to add back any capabilities.
Signed-off-by: Peter Razumovsky <prazumovsky@mirantis.com>