[XLA:GPU] Tag horizontal_loop_fusion_test with tf_cuda_tests_tag()

PiperOrigin-RevId: 367493837
Change-Id: I6cfcd6cf1535a3eda9f6ebddef6451f8b39598d8

Author: jurahul

tensorflow/compiler/xla/service/gpu/BUILD

@@ -1862,6 +1862,7 @@ cc_library(
 tf_cc_test(
     name = "horizontal_loop_fusion_test",
     srcs = ["horizontal_loop_fusion_test.cc"],
+    tags = tf_cuda_tests_tags(),
     deps = [
         ":fusion_merger",
         ":horizontal_loop_fusion",