Remove use of ArmNN.hpp where it is unnecessary.

Signed-off-by: Matthew Bentham <Matthew.Bentham@arm.com>
Change-Id: I6c90eab1c6bad76d5c7b3bf094998fa4b454bcd1
diff --git a/src/backends/cl/workloads/ClQuantizedLstmWorkload.hpp b/src/backends/cl/workloads/ClQuantizedLstmWorkload.hpp
index c7d8375..580db49 100644
--- a/src/backends/cl/workloads/ClQuantizedLstmWorkload.hpp
+++ b/src/backends/cl/workloads/ClQuantizedLstmWorkload.hpp
@@ -5,10 +5,11 @@
 
 #pragma once
 
+#include <armnn/QuantizedLstmParams.hpp>
 #include <backendsCommon/Workload.hpp>
 #include <backendsCommon/WorkloadData.hpp>
 
-#include <arm_compute/runtime/CL/CLFunctions.h>
+#include <arm_compute/runtime/CL/functions/CLLSTMLayerQuantized.h>
 
 namespace armnn
 {