Enable readability-named-parameter checks

We don't have too many violations here, probably because we don't have
many optional parameters.  Fix the existing instances, and enable the
check.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I4d512f0ec90b060fb60a42fe3cd6ba72fb6c6bcb
diff --git a/redfish-core/lib/service_root.hpp b/redfish-core/lib/service_root.hpp
index 62be63f..2a1803d 100644
--- a/redfish-core/lib/service_root.hpp
+++ b/redfish-core/lib/service_root.hpp
@@ -24,7 +24,7 @@
 {
 
 inline void
-    handleServiceRootGet(const crow::Request&,
+    handleServiceRootGet(const crow::Request& /*req*/,
                          const std::shared_ptr<bmcweb::AsyncResp>& asyncResp)
 {