The new dts file overrides the MPIDR values of the processing elements
which were defined in the common dtsi file. The new dts file defines
four cores in a single cluster, each core having two threads.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I0f8d8d250289077aee11eede4508871bb61dbc88