ARM: dts: msm: add PM6150 PD PHY device

Specify the configuration for PD PHY peripheral of PM6150,
which will be used for SM6150 platforms to implement USB
Power Delivery communication.

Change-Id: Ibf7f8f271d19579b59efd1dd31733c339e3d6a7d
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>