add --dlfw in the build (#3824)

Author: lanluo-nvidia

setup.py

@@ -119,6 +119,10 @@ def load_dep_info():
     RELEASE = True
     sys.argv.remove("--release")
 
+if "--dlfw" in sys.argv:
+    IS_DLFW_CI = True
+    sys.argv.remove("--dlfw")
+
 if (no_ts_env_var := os.environ.get("NO_TORCHSCRIPT")) is not None:
     if no_ts_env_var == "1":
         NO_TS = True