drm/msm/sde: add property to select dpu smmu mapping based on hw version

This change adds device tree property to select the display smmu mapping
range based on the HW revision. If property present, display will select
the full range 4GB, whereas if property not present, mapping will be
limited to the upper 2GB space only.

Change-Id: I3c8173e56a97ab16fcad47b9e706f69f8b45e2ce
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>