【NPU】add GrpoLossFunction support on NPU

[UserChen666]

Summary

Testing Done

• Hardware Type: Atlas 800I A2
• run make test to ensure correctness
• run make checkstyle to ensure code style
• run make test-convergence to ensure convergence

[kashif]

@UserChen666 I have extneded the Grpo loss functions with further options so you might need to update

[UserChen666]

@UserChen666 I have extneded the Grpo loss functions with further options so you might need to update

ok, I will update it.

[UserChen666]

@UserChen666 I have extneded the Grpo loss functions with further options so you might need to update

I have created a new pull request ---> #1146