ARM: dts: msm: add PM855B PD PHY device

Specify the configuration for PD PHY peripheral of PM855B,
which will be used for SDM855 platforms to implement USB
Power Delivery communication.

Change-Id: I80cd491c6bd7e5cd94380dc812001569c34dc8cc
Signed-off-by: Jack Pham <jackp@codeaurora.org>