IVGCVSW-2067 : dynamically create workload factories based on the backends in the network

Change-Id: Ide594db8c79ff67642721d8bad47624b88621fbd
diff --git a/src/backends/BackendRegistry.hpp b/src/backends/BackendRegistry.hpp
index 23cb37d..4465e95 100644
--- a/src/backends/BackendRegistry.hpp
+++ b/src/backends/BackendRegistry.hpp
@@ -6,11 +6,12 @@
 
 #include <armnn/Types.hpp>
 #include "RegistryCommon.hpp"
+#include "IBackendInternal.hpp"
 
 namespace armnn
 {
 
-using BackendRegistry = RegistryCommon<IBackend, IBackendUniquePtr>;
+using BackendRegistry = RegistryCommon<IBackendInternal, IBackendInternalUniquePtr>;
 
 BackendRegistry& BackendRegistryInstance();