FROMLIST: dts: foundation: Add ETE nodes for all CPUs

Add ETE bindings for all the CPUS on the model.

Bug: 174685394
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: TODO ADD LINK TO V4 WHEN POSTED
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: Icddc465693d5cff277b3fd3cbb1681a3ca414381