sdbusplus: replace message::variant with std::variant

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If7c54cfe20a84fa91aacc309ebfa804231078bf7
diff --git a/utils.cpp b/utils.cpp
index a7a7384..8961fe9 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -58,7 +58,7 @@
                  const std::string& interface, const std::string& property,
                  const std::string& value)
 {
-    sdbusplus::message::variant<std::string> variantValue = value;
+    std::variant<std::string> variantValue = value;
     std::string service = getService(bus, path, interface);
 
     auto method = bus.new_method_call(service.c_str(), path.c_str(),