Enable fp32/bf16 PRelu forward and backward in MkldnnCPU path (#60427)
Enable fp32/bf16 PRelu forward and backward in MkldnnCPU path.
Fixes https://github.com/pytorch/pytorch/issues/58896
Pull Request resolved: https://github.com/pytorch/pytorch/pull/60427
Approved by: https://github.com/VitalyFedyunin, https://github.com/ngimel, https://github.com/malfet