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 THE LINK TO LORE
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I1afa5e778d6dec9cbc1e5ad79adec8ec888ddf2e