[XLA:CPU] [oneDNN] Adding support for MatMul + BiasAdd fusion with oneDNN custom call rewrite
Added @penpornk as reviewer based on her expertise. Hi @penpornk, Can you please review this PR ? Thank you! Replaced by https://github.com/openxla/xla/pull/7484.
This PR enables OneDNN library call for the matched XLA HLO MatMul + BiasAdd patterns through custom_call instruction. In particular, this PR:

1. Renames oneDNN matmul rewriter pass and moves it after layout assignment pass.
2. Enables transposed input support for oneDNN matmul
3. Enables MatMul + BiasAdd pattern matching with oneDNN rewrite
4. Adds multiple tests with different variations of MatMul + BiasAdd pattern