✓ Fi.CI.IGT: success for perf: Bump the timestamp tolerance for really slow devices

[Chris Wilson]

Quoting Patchwork (2020-04-30 20:03:16)
>   * igt at perf@gen8-unprivileged-single-ctx-counters:
>     - shard-apl:          [TIMEOUT][65] -> [PASS][66]
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8401/shard-apl8/igt@perf@gen8-unprivileged-single-ctx-counters.html
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4518/shard-apl1/igt@perf@gen8-unprivileged-single-ctx-counters.html
>     - shard-glk:          [TIMEOUT][67] -> [PASS][68]
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8401/shard-glk6/igt@perf@gen8-unprivileged-single-ctx-counters.html
>    [68]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4518/shard-glk5/igt@perf@gen8-unprivileged-single-ctx-counters.html

Bingo.
-Chris