IVGCVSW-4623 Add android-nn-driver Support for FILL

* Added FILL operator support to HAL 1.3 Driver

!armnn:3447

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I271151857d805e8159b9dd675bd6e9e99e6ff69d
diff --git a/1.3/HalPolicy.hpp b/1.3/HalPolicy.hpp
index 024d3ff..6df2ce2 100644
--- a/1.3/HalPolicy.hpp
+++ b/1.3/HalPolicy.hpp
@@ -73,6 +73,8 @@
 
     static bool ConvertExpandDims(const Operation& operation, const Model& model, ConversionData& data);
 
+    static bool ConvertFill(const Operation& operation, const Model& model, ConversionData& data);
+
     static bool ConvertFloor(const Operation& operation, const Model& model, ConversionData& data);
 
     static bool ConvertFullyConnected(const Operation& operation, const Model& model, ConversionData& data);