treewide: use more specific object_path type

The sdbus++ tool allows the YAML to specify either "path" or
"object_path".  Switch to "object_path" everywhere for consistency
and clarity.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I60c51b2ece5fc4cb23d05ce5151301db3dcddf3a
diff --git a/yaml/xyz/openbmc_project/User/PrivilegeMapper.interface.yaml b/yaml/xyz/openbmc_project/User/PrivilegeMapper.interface.yaml
index ef28b45..3e84ecd 100644
--- a/yaml/xyz/openbmc_project/User/PrivilegeMapper.interface.yaml
+++ b/yaml/xyz/openbmc_project/User/PrivilegeMapper.interface.yaml
@@ -36,7 +36,7 @@
                 https://github.com/openbmc/docs/blob/master/architecture/user-management.md
       returns:
           - name: Path
-            type: path
+            type: object_path
             description: >
                 The path for the created privilege mapping object.