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

Add ETE bindings for all the CPUS on the model.

Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Link: TODO ADD LINK TO V4 WHEN POSTED
Change-Id: Ibea63bb5b42be51386d6bce43819073d19636fb6