Add ignore_suite_commit_info to espresso-shared

Author: gilles-duboscq

espresso-shared/mx.espresso-shared/suite.py

@@ -40,6 +40,7 @@
         "read" : "https://github.com/oracle/graal.git",
         "write" : "[email protected]:oracle/graal.git",
     },
+    "ignore_suite_commit_info": True,
 
     # ------------- licenses