[ROCm] Enable Lerp tests for complex32 (#108100)

Enables previously disabled "lerp" opinfo tests for chalf on ROCm

Pull Request resolved: #108100
Approved by: https://github.com/pruthvistony, https://github.com/jithunnair-amd, https://github.com/kit1980

torch/testing/_internal/common_methods_invocations.py

@@ -15244,7 +15244,6 @@ def reference_flatten(input, start_dim=0, end_dim=-1):
     OpInfo('lerp',
            dtypes=floating_and_complex_types_and(torch.bfloat16, torch.half),
            dtypesIfCUDA=floating_and_complex_types_and(torch.chalf, torch.half, torch.bfloat16),
-           dtypesIfROCM=floating_and_complex_types_and(torch.half, torch.bfloat16),
            sample_inputs_func=sample_inputs_lerp,
            supports_forward_ad=True,
            supports_fwgrad_bwgrad=True,