MLCE-530 Add support for UnidirectionalSequenceLstm to armnn delegate

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: Ib04f8d6b9e60a4204c56eba4c2ecd2b316509dcc
diff --git a/delegate/src/test/TestUtils.hpp b/delegate/src/test/TestUtils.hpp
index 8a2756f..5d4a0ed 100644
--- a/delegate/src/test/TestUtils.hpp
+++ b/delegate/src/test/TestUtils.hpp
@@ -42,6 +42,9 @@
 /// Can be used to compare float data coming from a tflite interpreter with a tolerance of limit_of_float*100
 void CompareData(float tensor1[], float tensor2[], size_t tensorSize);
 
+/// Can be used to compare float data coming from a tflite interpreter with a given percentage tolerance
+void CompareData(float tensor1[], float tensor2[], size_t tensorSize, float percentTolerance);
+
 /// Can be used to compare int8_t data coming from a tflite interpreter with a tolerance of 1
 void CompareData(int8_t tensor1[], int8_t tensor2[], size_t tensorSize);