T6219: Add support for container sysctl parameter (backport #3614) (#3629)
- container: T6219: Add support for container sysctl / kernel parameters
(cherry picked from commit 717ea64e4c54a8be619ffc29c16c6203b29319dd)
- T6219: align with system sysctl and limit parameters to supported
(cherry picked from commit f030464952168b553b5b3e29b461d437c2642a9b)
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Co-authored-by: Ben Pilgrim <ben@pilgrim.me.uk>
Co-authored-by: Nicolas Vollmar <nvollmar@gmail.com>