* Add missing kernel config checks (#6946)

Add additional kernel config checks for NETFILTER_XT_MATCH_COMMENT and
NETFILTER_XT_MATCH_MULTIPORT as they are both required to run k3s.
Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>

* Enhance `k3s check-config` (#7091)

* Move  CONFIG_CGROUP_PIDS to Required
Signed-off-by: Derek Nola <derek.nola@suse.com>

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Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>
Signed-off-by: Derek Nola <derek.nola@suse.com>
Co-authored-by: Richard Steinmetz <richard@steinmetz.cloud>