[build Folder Migration] Move wheel files (pytorch#9418)

### Summary
A series of diffs as a part of
pytorch#9117.

### Test plan

CI


cc @larryliu0820 @lucylq

Author: jathu

setup.py

@@ -775,7 +775,7 @@ def get_ext_modules() -> List[Extension]:
                     is_executable=True,
                 ),
                 BuiltFile(
-                    src_dir="build/",
+                    src_dir="tools/wheel",
                     src_name="pip_data_bin_init.py.in",
                     dst="executorch/data/bin/__init__.py",
                 ),