update new HIDL interfaces in generic system image

Test: Boot to home screen
Bug: 36682246
Change-Id: Ia856ed0929caa0c089a62100d17f717519ae5ebf
diff --git a/target/product/treble_common.mk b/target/product/treble_common.mk
index 6b33aed..8463ace 100644
--- a/target/product/treble_common.mk
+++ b/target/product/treble_common.mk
@@ -88,6 +88,7 @@
     android.hidl.manager@1.0 \
     android.hidl.memory@1.0 \
     android.hidl.token@1.0 \
+    android.system.net.netd@1.0 \
     android.system.wifi.keystore@1.0 \
 
 # VNDK: