ARM: dts: msm: Add rpmh bcm register map for shima

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