product/rdn2: add configuration data for generic timer driver

The configuration data for generic timer driver includes the base
addresses of timer register, counter register and control register along
with the initial frequency and the id of clock device on which the timer
depends.

Change-Id: I4801c2f4a645d9dd3770f6c6290ba19492d84396
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>