feat(intel): update Agilex5 DDR and IOSSM driver

DDR and IOSSM driver code for Agilex5 platform,
initialize the DDR/IOSSM in BL2 EL3 early flow.

Change-Id: I3e4205171d9356190b60498cae322318520bb1c2
Signed-off-by: Girisha Dengi <girisha.dengi@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
8 files changed