IVGCVSW-3469 Add front end for Quantized LSTM layer

 * Added new layer QuantizedLstm (Android Q)
 * Made necessary changes to APIs
 * Added unit tests

Change-Id: I3b9f16b0e7e49f51932cf204c87cb7118798123a
Signed-off-by: James Conroy <james.conroy@arm.com>
diff --git a/Android.mk b/Android.mk
index 8ad790e..8a24e7b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -125,6 +125,7 @@
         src/armnn/layers/PreCompiledLayer.cpp \
         src/armnn/layers/PreluLayer.cpp \
         src/armnn/layers/QuantizeLayer.cpp \
+        src/armnn/layers/QuantizedLstmLayer.cpp \
         src/armnn/layers/ReshapeLayer.cpp \
         src/armnn/layers/ResizeLayer.cpp \
         src/armnn/layers/RsqrtLayer.cpp \