CHANGELOG.md update for ROCm 4.2
# Change Log for Tensile
-## [(Unreleased) Tensile 4.27.0 for ROCm 4.2.0]
+## [Tensile 4.27.0 for ROCm 4.2.0]
### Added
- Benchmarking and library support for CU efficiency vs. overall speed
- support general batch GEMM
