Move object_mapper per dbus path conventions.

Partial fix for openbmc/openbmc#1112.

Change-Id: I467a9ffa68d9539c5c1f71e2dfa3281a347d5951
Signed-off-by: Leonel Gonzalez <lgonzalez@us.ibm.com>
diff --git a/writefrudata.cpp b/writefrudata.cpp
index edaa7a6..8b59e9a 100644
--- a/writefrudata.cpp
+++ b/writefrudata.cpp
@@ -417,7 +417,7 @@
 {
     auto mapperCall = bus.new_method_call(
             "xyz.openbmc_project.ObjectMapper",
-            "/xyz/openbmc_project/ObjectMapper",
+            "/xyz/openbmc_project/object_mapper",
             "xyz.openbmc_project.ObjectMapper",
             "GetObject");