Allow NNAPI module (com.android.neuralnetworks) in server_configurable_flags.

Test: mm
Change-Id: Ia71117d0f8cf70fd601ddbed2c14dc990a872f30
diff --git a/libflags/Android.bp b/libflags/Android.bp
index 328f1d4..b36f0ba 100644
--- a/libflags/Android.bp
+++ b/libflags/Android.bp
@@ -18,6 +18,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.os.statsd",
+        "com.android.neuralnetworks",
         "com.android.resolv",
     ],
     min_sdk_version: "29",