NNXSW-3081 Move Filesystem.hpp and Threads.hpp to public include

!android-nn-driver:5966

Change-Id: Ice0b4d2872bb0e09bfc0763034a206c3a8f24af4
Signed-off-by: Rob Hughes <robert.hughes@arm.com>
diff --git a/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp b/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
index 65dbdcd..2c4da54 100644
--- a/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
+++ b/src/timelineDecoder/tests/JSONTimelineDecoderTests.cpp
@@ -6,7 +6,7 @@
 #include <JSONTimelineDecoder.hpp>
 #include <server/include/timelineDecoder/TimelineCaptureCommandHandler.hpp>
 #include <server/include/timelineDecoder/TimelineDecoder.hpp>
-#include <Filesystem.hpp>
+#include <armnnUtils/Filesystem.hpp>
 
 #include <doctest/doctest.h>