Update association names to use new interface

The phosphor-logging code moved from implementing
org.openbmc.Associations to now implementing
xyz.openbmc_project.Association.Definitions. The property name was also
changed from associations to Associations.

Change-Id: I4443b9092319bf73245fa7a256efb9227e87097d
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/selutility.cpp b/selutility.cpp
index 615ad81..cd3b6a6 100644
--- a/selutility.cpp
+++ b/selutility.cpp
@@ -117,8 +117,9 @@
 {
     sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
 
-    static constexpr auto assocIntf = "org.openbmc.Associations";
-    static constexpr auto assocProp = "associations";
+    static constexpr auto assocIntf =
+        "xyz.openbmc_project.Association.Definitions";
+    static constexpr auto assocProp = "Associations";
 
     auto service = ipmi::getService(bus, assocIntf, objPath);