IVGCVSW-6166 Add Support for Conv3d to TFLite Delegate

 * Conv3d is only correctly supported for external delegates
   from TF v2.6, as there was a breaking bug in v2.5.

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: Ib7941307f4c7b0d3dbb7deaa5a90aceb63c1162f
diff --git a/delegate/CMakeLists.txt b/delegate/CMakeLists.txt
index 504256d..0178594 100644
--- a/delegate/CMakeLists.txt
+++ b/delegate/CMakeLists.txt
@@ -141,6 +141,7 @@
         src/test/ControlTest.cpp
         src/test/ControlTestHelper.hpp
         src/test/Convolution2dTest.cpp
+        src/test/Convolution3dTest.cpp
         src/test/ConvolutionTestHelper.hpp
         src/test/DelegateOptionsTest.cpp
         src/test/DelegateOptionsTestHelper.hpp