Fix Association interface

Mapper changed to only allow the new interface, update
to it.

Tested: Mapper showed all associations

Change-Id: I8b252c70e9f27b083a438393c731fbeb3e2ca0e5
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/src/CPUSensor.cpp b/src/CPUSensor.cpp
index 7654fde..1b04299 100644
--- a/src/CPUSensor.cpp
+++ b/src/CPUSensor.cpp
@@ -63,7 +63,7 @@
         }
         association = objectServer.add_interface(
             "/xyz/openbmc_project/sensors/temperature/" + name,
-            "org.openbmc.Associations");
+            association::interface);
 
         setInitialProperties(conn);
     }