Add test configs with GIC600AE model

Added test configurations with GIC600AE model.
Currently, this model supports only single CPU cluster.

Change-Id: If4ca78e5d7fc47ae289e4b8b21e43c5d848f243e
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
6 files changed