Run testcase for 8124 only with threaded ways
Run testcase for 8124 only with threaded ways

(cherry picked from commit 0014fb3dbf4a2096489a4800adf2d79a83a12274)

lukexi/ghc-7.8-arm64,lukexi/ghc-7.8-arm64,hferreiro/replay,lukexi/ghc-7.8-arm64,hferreiro/replay,hferreiro/replay,hferreiro/replay,hferreiro/replay,hferreiro/replay,lukexi/ghc-7.8-arm64,hferreiro/replay,lukexi/ghc-7.8-arm64