Gitlab CI: reactivate GPU jobs

ci_test_scripts/generate_gitlab_ci_tests.py

@@ -478,10 +478,9 @@ band_to_full_blocking = {
 
 gpu = {
         "no-gpu" : "--disable-gpu",
+        "with-gpu" : "--enable-gpu --with-cuda-path=\\$CUDA_HOME/",
 }
 
-#"with-gpu" : "--enable-gpu --with-cuda-path=\\$CUDA_HOME/",
-
 
 coverage = {
         "coverage" : "coverage",