Fix robot test for nexus release

Change-Id: I18df83c5d454b0ee6d1d21aa22b3d9c7774e1237
diff --git a/variables/nexus_release.py b/variables/nexus_release.py
index 4a62d17..732f6cb 100644
--- a/variables/nexus_release.py
+++ b/variables/nexus_release.py
@@ -1,3 +1,3 @@
 from common_fpga import *
 
-MODEL_FILENAME = 'hello_world.kelvin'
+MODEL_FILENAME = 'conv1x1_test_emitc_static.kelvin'