kernel config: Enable CGROUP_BPF
kernel config: Enable CGROUP_BPF

Avoids the following warning:

File /.../systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)

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