IVGCVSW-1813 - Add MeanLayer
 * add MeanLayer functionalities
 * modify MeanQueueDescriptor to use parameter
 * add IsMeanSupported placeholder for all backends

Change-Id: Ic69a34a61df667849977aad9b38f9a01eef565b5
diff --git a/Android.mk b/Android.mk
index 9272aef..db3c6b3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -177,6 +177,7 @@
         src/armnn/layers/InputLayer.cpp \
         src/armnn/layers/L2NormalizationLayer.cpp \
         src/armnn/layers/LstmLayer.cpp \
+        src/armnn/layers/MeanLayer.cpp \
         src/armnn/layers/MemCopyLayer.cpp \
         src/armnn/layers/MergerLayer.cpp \
         src/armnn/layers/MultiplicationLayer.cpp \