add support for multiple owner

bin/table_generator

@@ -276,7 +276,10 @@ def find_comp_file(sw, toolchain, repo):
 def find_owner(sw, acls):
     for pkg in acls['software']:
         if pkg['name'] == sw:
+            if isinstance(pkg['owner'], str):
                 return '@'+pkg['owner']
+            elif isinstance(pkg['owner'], list):
+                return ' '.join('@'+owner for owner in pkg['owner'])
     return 'swmanage'
 
 def table_generator(sw_dict, acls, table_type):