F32 Softmax operator benchmark

PiperOrigin-RevId: 291990394
diff --git a/BUILD.bazel b/BUILD.bazel
index 17291a6..619a167 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -2157,7 +2157,8 @@
 xnnpack_benchmark(
     name = "softmax_bench",
     srcs = ["bench/softmax.cc"],
-    deps = OPERATOR_BENCHMARK_DEPS,
+    copts = xnnpack_optional_tflite_copts(),
+    deps = OPERATOR_BENCHMARK_DEPS + xnnpack_optional_tflite_deps(),
 )
 
 ############################# End-to-end benchmarks ############################