Add /data/rc as valid target for policy runs

Added hacky solution to allow /data/rc to be selected for policy runs through the Python wrapper

src/run-policy/run-submit-pol-job.py

@@ -58,7 +58,10 @@ def validate_device(device):
     if device in ['scratch','home']:
         return Path('/').joinpath(device).resolve()
 
-    if device in ['/scratch','/home','/data/user','/data/project']:
+    if device == 'rc':
+        return Path('/data/rc').resolve()
+    
+    if device in ['/scratch','/home','/data/user','/data/project','/data/rc']:
         return Path(device).resolve()
     
     p = Path(device).resolve() # resolve given path into absolute path