IVGCVSW-6814 Remove references to armnn:BackendId in the profiling code

Signed-off-by: Cathal Corbett <cathal.corbett@arm.com>
Change-Id: Ib399a5eee9e52882800ec3e02e4173424a7c19b1
diff --git a/src/profiling/ConnectionAcknowledgedCommandHandler.hpp b/src/profiling/ConnectionAcknowledgedCommandHandler.hpp
index 5bb3c95..9ea3bd4 100644
--- a/src/profiling/ConnectionAcknowledgedCommandHandler.hpp
+++ b/src/profiling/ConnectionAcknowledgedCommandHandler.hpp
@@ -23,7 +23,7 @@
 class ConnectionAcknowledgedCommandHandler final : public arm::pipe::CommandHandlerFunctor
 {
 
-typedef const std::unordered_map<armnn::BackendId, std::shared_ptr<IBackendProfilingContext>>&
+typedef const std::unordered_map<std::string, std::shared_ptr<IBackendProfilingContext>>&
     BackendProfilingContexts;
 
 public: