Merged requested to merge github/fork/girishpathak/pmi_v1 into master
Created by: girishpathak
This change add a reference performance measurement module to the SCP firmware. It provides methods to measure cycles taken by section of the code using ARM DWT IP. It also includes a reference driver for the Juno platform. Although this change only adds configuration for the Juno platform, same code can be used to enable functionality on the other ARM Platforms.