arm64, arm: Tweak defconfig and multi_v7_defconfig for EAS integration

for arm64 and arm:

Add    CpuFreq governors and make schedutil default
Add    Sched Debug
Add    Ftrace
Add    Function, Function Graph, Irqsoff, Preempt, Sched Tracer
Add    Prove Locking

for arm64:

Add    Generic DT based CpuFreq driver - for hikey
Add    USB Net AX8817X                 - for hikey
Add    USB Net RTL8152		       - for hikey
Add    HI6220 stub clock               - for hikey

for arm:

Add    Kernel .config support and /proc/config.gz
Add    DIE sched domain level
Add    Scheduler autogroups
Add    ARM Big.Little cpufreq driver - for TC2
Add    ARM Big.Little cpuidle driver - for TC2
Add    Sensor Vexpress               - for TC2

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>