gnu: %default-extra-linux-options: Enable kernel options for elogind service.

gnu: %default-extra-linux-options: Enable kernel options for elogind service.

Fixes: https://issues.guix.gnu.org/43078

These options are already enabled in the kernel configs included in guix, but
might be missing from variants using a defconfig from the upstream kernel,
such as linux-libre-arm-generic and linux-libre-arm64-generic.

* gnu/packages/linux (%default-extra-linux-options): Enable
  CONFIG_CGROUP_FREEZER, CONFIG_BLK_CGROUP, CONFIG_CGROUP_WRITEBACK,
  CONFIG_CGROUP_SCHED, CONFIG_CGROUP_PIDS, CONFIG_CGROUP_FREEZER,
  CONFIG_CGROUP_DEVICE, CONFIG_CGROUP_CPUACCT, CONFIG_CGROUP_PERF,
  CONFIG_SOCK_CGROUP_DATA, CONFIG_BLK_CGROUP_IOCOST, CONFIG_CGROUP_NET_PRIO,
  CONFIG_CGROUP_NET_CLASSID, CONFIG_MEMCG, CONFIG_MEMCG_SWAP,
  CONFIG_MEMCG_KMEM, CONFIG_CPUSETS and CONFIG_PROC_PID_CPUSET.