[build Folder Migration] Move build/executorch-wheel-config.cmake (#9319)

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

### Test plan

CI


cc @larryliu0820 @lucylq

Author: jathu

setup.py

@@ -536,7 +536,7 @@ def run(self):
             ),
             # Install executorch-wheel-config.cmake to pip package.
             (
-                "build/executorch-wheel-config.cmake",
+                "tools/cmake/executorch-wheel-config.cmake",
                 "share/cmake/executorch-config.cmake",
             ),
         ]