From Armv8.6 the counter operates at a higher fixed frequency of 1GHz.
This implies a resolution of 1ns. Change cpu arch timer frequency to 1ns
from 52ns (19.2Mhz) resolution.
Change-Id: Ib0bfe643edbd4de568cf30ebaa1ec1175111352e
Signed-off-by: Murali Nalajala <quic_mnalajal@quicinc.com>