fix(configure): skip power gate macro copy when no_power_gating is set

shuttle.py

@@ -260,6 +260,7 @@ class ShuttleConfig:
             )
 
         # Copy power gate / analog switch macros:
+        if not self.config.get("no_power_gating", False):
             mux_macros = self.tech.mux_macros
             if self.config.get("id") == "ttsky25a":
                 # Backward compatibility for ttsky25a shuttle mux with older pg macros