IVGCVSW-4450 Add CL Enhanced Quantized LSTM Workload

 * Adds QLstm CL workload
 * Added Layer and CreateWorkload tests

Signed-off-by: Ryan OShea <Ryan.OShea2@arm.com>
Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: I32335e528467bfd619edb249d2971705ac2a6163
diff --git a/src/backends/cl/ClWorkloadFactory.cpp b/src/backends/cl/ClWorkloadFactory.cpp
index f584272..50a867c 100644
--- a/src/backends/cl/ClWorkloadFactory.cpp
+++ b/src/backends/cl/ClWorkloadFactory.cpp
@@ -431,6 +431,12 @@
     return MakeWorkload<ClPreluWorkload>(descriptor, info);
 }
 
+std::unique_ptr<IWorkload> ClWorkloadFactory::CreateQLstm(const QLstmQueueDescriptor& descriptor,
+                                                          const WorkloadInfo& info) const
+{
+    return std::make_unique<ClQLstmWorkload>(descriptor, info);
+}
+
 std::unique_ptr<IWorkload> ClWorkloadFactory::CreateQuantize(const QuantizeQueueDescriptor& descriptor,
                                                              const WorkloadInfo& info) const
 {