freedreno/devices: Add A740v3 from Quest 3
What does this MR do and why?
Two known differences with a740 are:
-
RB_DBG_ECO_CNTL
being 1 on A740v3 - Concurrent binning is not used
We don't have concurrent binning implemented and it's unknown
how important is RB_DBG_ECO_CNTL
diff. So for now A740v3 is aliased
to ordinary A740.