libpldmresponder: create PDR when the D-Bus object path exists

On a system where this D-Bus object path does not exist, it should
not create a PDR when the D-Bus object specified here is not found.

Tested: In the PDR config files, the PDR is successfully created when
the objectPath of the D-Bus exists, otherwise, skipped the current
config and the PDR is not created.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Ib59fa79cc28d5712161bfb971c37c86c363bafb0
diff --git a/test/pdr_jsons/state_effecter/good/effecter_pdr.json b/test/pdr_jsons/state_effecter/good/effecter_pdr.json
index e5230c6..ec77f6e 100644
--- a/test/pdr_jsons/state_effecter/good/effecter_pdr.json
+++ b/test/pdr_jsons/state_effecter/good/effecter_pdr.json
@@ -83,7 +83,7 @@
                                 ]
                             },
                             "dbus": {
-                                "path": "/foo/bar/baz",
+                                "path": "/foo/bar",
                                 "interface": "xyz.openbmc_project.Foo.Bar.Baz",
                                 "property_name": "propertyName",
                                 "property_type": "string",