ARM: dts: msm: Add VDD_APC CPRh devices for msmcobalt

Introduce the CPRh regulator devices to manage the two VDD_APC supplies
powering the CPU clusters of the msmcobalt chip.

Change-Id: I3f63d2d89be631156635d1628d7687b6ef209846
CRs-Fixed: 967275
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>