msm: kgsl: Turn on perfcounters for A405/A430

A420 had some workarounds for invalid performance counters and
countables.  These have been fixed on subsequent cores so special
case the workarounds for just A420 and open up the new counters
and countables for the other A4XX cores.

Change-Id: I2dfa9b9bb728249c36fd85e260050bced87a0938
Signed-off-by: Ananta Kishore K <akollipa@codeaurora.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>