Add uint16 to supported dtypes in exir/dialects

Differential Revision: D67803963

Pull Request resolved: #7495

Author: tarun292

exir/dialects/edge/dtype/supported.py

@@ -25,6 +25,7 @@
     torch.float16: "Half",
     torch.float: "Float",
     torch.double: "Double",
+    torch.uint16: "UInt16",
 }
 
 regular_tensor_str_to_dtypes = {