Add rpmh bcm register space mapping to help read bcm
status registers whenever IFE overflow happens. This
helps in getting ddr, mnoc clock frequencies along
with other camcc clock frequencies to understand
the overflow scenario.
CRs-Fixed: 2787956
Change-Id: Ic6ae399a7000974d6f6e33197dc287707a4f2c2e
b9e729fca7