ARM: dts: msm: Utilize PMI8962 devices on msmsamarium-sim

The msmsamarium simulator utilizes the PMI8962 boost-bypass
regulator as the parent for several PMA8084 regulators.  Capture
this relationship in the msmsamarium-sim device tree.

Change-Id: I39adad04e7f8de1a4c43bc835073719b9d9e3d4e
Signed-off-by: David Collins <collinsd@codeaurora.org>