Set tflm_kernel_friends to public

Change-Id: I55ffeb85acb6231e437c831d1e9e6d613aa7aa9f

tensorflow/extra_rules.bzl

diff --git a/tensorflow/extra_rules.bzl b/tensorflow/extra_rules.bzl
index c0a39dc..7a3523e 100644
--- a/tensorflow/extra_rules.bzl
+++ b/tensorflow/extra_rules.bzl
@@ -1,5 +1,7 @@
 def tflm_kernel_friends():
-    return []
+    return [
+        "public",
+    ]
 
 def tflm_audio_frontend_friends():
     return []