product/rdn2: add configuration data for scmi and smt services

Provide configuration data to enable support request for PSCI services
from the AP core to the SCMI platform for RD-Evans pltform. At present
only the PSCI service for power management is supported.

Change-Id: I5923b7c3b669b1684c15de57debf25e6e09d77fb
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>