ARM: dts: msm: Add multi clk levels in camera nodes for sdm845, sdm670

Add multiple clock levels for each camera hw node so
that drivers can select the required level while
turning on hw.

Change-Id: I729474277e3d7d06b2becbac2d8abb2882d1c7b4
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>