[PHI] Migrate sgd and stack oneDNN kernels

[piotrekobi]

PR types

Others

PR changes

Others

Describe

Migrates the following oneDNN operator fluid kernels to PHI:

• sgd
• stack

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[piotrekobi]

@chenwhql Please review

[piotrekobi]

@YuanRisheng I left it there for now because paddle/fluid/operators/math/selected_rows_functor.cc uses it and I had to modify the PHI version slightly so it's not compatible with it. Once selected_rows_functor.cc gets deleted or migrated axpy_handler.h/cc can be deleted from fluid.