Increase size of logistic test

Change-Id: Id9f620f3afdd988241798b9ec07e518d38e5e17b

tests/tflm/BUILD

diff --git a/tests/tflm/BUILD b/tests/tflm/BUILD
index 3834394..c40e150 100644
--- a/tests/tflm/BUILD
+++ b/tests/tflm/BUILD
@@ -90,6 +90,7 @@
     srcs = [
         "@tflite-micro//tensorflow/lite/micro/kernels:logistic_test.cc",
     ],
+    hw_test_size = "large",
     deps = [
         "//crt",
         "@tflite-micro//tensorflow/lite/c:common",