Revert "Changed attribute Associations to associations"

This reverts commit 2c932ce79404350ef9e7dcd9371e2b7be67e8933.

Change-Id: I1c481bbc590c4587e161eb6e1a93e554c184205e
diff --git a/redfish/extended/test_software_manager.robot b/redfish/extended/test_software_manager.robot
index a2ef154..3ba78a5 100755
--- a/redfish/extended/test_software_manager.robot
+++ b/redfish/extended/test_software_manager.robot
@@ -211,7 +211,7 @@
     #    ]
     # },
 
-    ${sw_attr_data}=  Read Attribute  ${software_path}  associations
+    ${sw_attr_data}=  Read Attribute  ${software_path}  Associations
     List Should Contain Value  @{sw_attr_data}  ${assoiation_path}
 
     # Verify the inventory path in software manager entry.