IVGCVSW-1881 Add PadLayer to ArmNN

Change-Id: Ib70883a20fa7b82bfb090aa98cc51a6d645b5722
diff --git a/Android.mk b/Android.mk
index 4d0664b..0924648 100644
--- a/Android.mk
+++ b/Android.mk
@@ -99,6 +99,7 @@
         src/armnn/layers/MultiplicationLayer.cpp \
         src/armnn/layers/NormalizationLayer.cpp \
         src/armnn/layers/OutputLayer.cpp \
+        src/armnn/layers/PadLayer.cpp \
         src/armnn/layers/PermuteLayer.cpp \
         src/armnn/layers/Pooling2dLayer.cpp \
         src/armnn/layers/DivisionLayer.cpp \