drm/msm/a6xx: Fix some A619 tunables

Adreno 619 expects some tunables to be set differently. Make up for it.

Fixes: b7616b5c ("drm/msm/adreno: Add A619 support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542782/


Signed-off-by: Rob Clark <robdclark@chromium.org>