neuralnetworks: Update makefiles.

Bug: N/A
Test: N/A
Change-Id: I83a920c646cf03dcc161a6fbc928a6dc09b2d7f1
Merged-In: I5fb6c126a090a3fe0fa4829ea9224564133dc1ae
diff --git a/neuralnetworks/1.2/Android.bp b/neuralnetworks/1.2/Android.bp
index 0642dce..daf0c18 100644
--- a/neuralnetworks/1.2/Android.bp
+++ b/neuralnetworks/1.2/Android.bp
@@ -24,6 +24,7 @@
     types: [
         "Constant",
         "DeviceType",
+        "Extension",
         "FmqRequestDatum",
         "FmqResultDatum",
         "MeasureTiming",