ci: Mark the rest of compswap as flaky on freedreno.

We got another flake, this time on
dEQP-GLES31.functional.compute.shared_var.atomic.compswap.highp_uint,
which blocked !4162 from merging.  Mark the rest flaky so we don't have to
keep firefighting one test at a time.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6459>
1 file changed