arm, arm64: Enable kernel config options required for EAS

arm and arm64:

    Add    Cgroups (+ FAIR_GROUP_SCHED and FREEZER)
    Add    Uclamp support for tasks and taskgroups
    Add    CpuFreq governors and make schedutil default

arm:

    Add    Cpuset support
    Add    Scheduler autogroups
    Add    DIE (SCHED_MC) sched domain level
    Add    Energy Model

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
[@Ionela: cpufreq governor enablement for both arm and arm64]