ARM: dts: msm: add DSI PHY refgen for sdm845 v2

Add refgen regulator support for DSI PHY, so it can be
enabled/disabled when required.

Change-Id: I3aba81787f82dbf55df82b16cd8644ea9bbba047
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
2 files changed