Entry: implement org.openbmc.Associations API

Have the Entry object implement the org.openbmc.Associations DBus API in
order to add inventory callouts to errors.

Change-Id: I9c645c90e3de4601cdbb020b591f5da24c733613
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/Makefile.am b/Makefile.am
index dae8b7a..7623ce5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -31,7 +31,8 @@
 	xyz/openbmc_project/Logging/Internal/Manager/server.cpp \
 	log_manager.cpp \
 	log_manager_main.cpp \
-	elog_entry.cpp
+	elog_entry.cpp \
+	org.openbmc.Associations.cpp
 
 # Be sure to build needed files before compiling
 BUILT_SOURCES = \