Move getProperty calls to utility

Having all dbus calls run through the same utility reduces the amount of
generated code, and more importantly, gives us a place where we can log
the requests and responses to help with debugging.

Tested: Redfish service validator passes.

Change-Id: Ic1bf45130b5069cd57f7af26e12c8d3159c87c67
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/redfish-core/lib/update_service.hpp b/redfish-core/lib/update_service.hpp
index 243b9ad..a82630b 100644
--- a/redfish-core/lib/update_service.hpp
+++ b/redfish-core/lib/update_service.hpp
@@ -1177,9 +1177,8 @@
                        const std::string& service, const std::string& path,
                        const std::string& swId)
 {
-    sdbusplus::asio::getAllProperties(
-        *crow::connections::systemBus, service, path,
-        "xyz.openbmc_project.Software.Version",
+    dbus::utility::getAllProperties(
+        service, path, "xyz.openbmc_project.Software.Version",
         [asyncResp,
          swId](const boost::system::error_code& ec,
                const dbus::utility::DBusPropertiesMap& propertiesList) {