anv: fix some multisample lines_wide CTS tests
We can use a better algorithm from ICL and onward by setting a chicken bit, but prior to that we need to resort to disabling rectangular lines. Since we don't support strictLines anyway, this shouldn't be a major issue.
Closes #2833 (closed) Fixes dEQP-VK.rasterization.interpolation_multisample_*_bit.*lines_wide