Implement activation other then RELU in Conv + bias + Activation

[assistant-librarian]

[Migrated from original issue] ROCm/composable_kernel#823

Original issue author: @bghimireamd

In CK for (conv + bias + activation) we currently have activation as RELU.

It would be great to have other activations. We can start with the ones that take less performance hit on CK.

eg: TANH, SOFTRELU