removing base_module for glow/fb/torch_glow/py/NNPI:torch_glow

Summary:
X-link: pytorch/glow#6173

This is an attempt to reduce the number of buck targets with unnecessary base_module.

Differential Revision: D56368043

inference/compute/pt/pytorch_linear.py

@@ -33,7 +33,7 @@ def forward(self, x):
 
 
 def infer_nnpi(model, device, data_type, input_size, output_size, batch_size, args):
-    import torch_glow
+    import glow.fb.torch_glow.py.NNPI.torch_glow as torch_glow
 
     # Detailed structure for spec can be found at https://fburl.com/diffusion/79q4efud
     # Create compilation spec