ARM: dts: msm: Add camera FD device for sdm845

Add camera FD (Face Detection) device node to
enable face detection functionality. FD HW block
analyzes the given frame to detect faces.

Change-Id: I02d896759b2bbf8dfcb0745d3cdb03bdda4b9bb7
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>