msm: kgsl: Remove workaround for glitch between SMMU and GPU for a530v3

A530v3 has the fix for glitch between SMMU and GPU. Restrict the
workaround to hardware revisions below a530v3.

Change-Id: I20754b09209dc7b3bd647038068b17559b68746e
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>