board/rddanielxlr: add support for rd-daniel config-xlr platform

RD-Daniel Config-XLR platform has four identical chips connected via a
high speed coherent CCIX link. Each chip has four Neoverse cores
connected via coherent CMN interconnect.

Change-Id: I37d1b91f2b6ba08f61c64d0288bc16a429836c08
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
8 files changed