[NO MERGE] CIRCT specialization

Author: makslevental

setup.py

@@ -4,9 +4,7 @@
 from setuptools import setup, find_namespace_packages
 
 # TODO: find from extras maybe
-HOST_MLIR_PYTHON_PACKAGE_PREFIX = os.environ.get(
-    "HOST_MLIR_PYTHON_PACKAGE_PREFIX", "mlir"
-)
+HOST_MLIR_PYTHON_PACKAGE_PREFIX = "circt"
 PACKAGE_NAME = f"{HOST_MLIR_PYTHON_PACKAGE_PREFIX.replace('.', '-').replace('_', '-')}-python-extras"