Consitently use dbus::utility types

This saves about 4k on the binary size

Tested: Redfish service validator passes.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I9546227a19c691b1aecb80e80307889548c0293f
diff --git a/include/image_upload.hpp b/include/image_upload.hpp
index 1b0a09a..330ea9c 100644
--- a/include/image_upload.hpp
+++ b/include/image_upload.hpp
@@ -64,10 +64,7 @@
             BMCWEB_LOG_DEBUG << "Match fired";
 
             sdbusplus::message::object_path path;
-            std::vector<std::pair<
-                std::string, std::vector<std::pair<
-                                 std::string, dbus::utility::DbusVariantType>>>>
-                interfaces;
+            dbus::utility::DBusInteracesMap interfaces;
             m.read(path, interfaces);
 
             if (std::find_if(interfaces.begin(), interfaces.end(),