ARM: dts: msm: enable +3 deep prefetch for camera sids on sdm670

Enable +3 deep prefetch for camera sids on sdm670. While we are at it, use
mask to include all HF/SF sids for +3 deep prefetch instead of providing
separate sid, mask tuples.

Change-Id: Ibdbfd8a2c528afeae6419f1c3b0c84106a9b835b
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>