IVGCVSW-3656 Rename ARMCOMPUTEREF to ARMNNREF

 * Renamed ARMCOMPUTEREF to ARMNNREF (and relative symbols) as the
   previous name was misleading

!android-nn-driver:1819

Change-Id: I912e9f521750b91539e48f8a2fb4de73fb6f7425
Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index c12842d..640d5cd 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -1,4 +1,4 @@
-if(BUILD_SAMPLE_APP AND ARMCOMPUTEREF)
+if(BUILD_SAMPLE_APP AND ARMNNREF)
     add_executable(SimpleSample SimpleSample.cpp)
     target_link_libraries(SimpleSample armnn ${CMAKE_THREAD_LIBS_INIT})
 endif()