freedreno/crashdec: Disable GALLIUM_DUMP_CPU

We don't want util_cpu to vomit cpu caps all over the test output.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19551>

src/freedreno/decode/meson.build

@@ -216,6 +216,7 @@ if with_tests
       output: name + '.log',
       command: [crashdec, args, files('../.gitlab-ci/traces/' + name + '.devcore')],
       capture: true,
+      env: {'GALLIUM_DUMP_CPU': 'false'},
     )
 
     test('crashdec-' + name,