Set sepolicy for vmnic in AVF

Bug: 340376951
Test: Presubmit
Change-Id: I5f48ff4a459805de2f74d160c1b61473c6de0466
diff --git a/flagging/Android.bp b/flagging/Android.bp
index 41a2861..2d0bb68 100644
--- a/flagging/Android.bp
+++ b/flagging/Android.bp
@@ -20,6 +20,7 @@
         "RELEASE_AVF_SUPPORT_CUSTOM_VM_WITH_PARAVIRTUALIZED_DEVICES",
         "RELEASE_AVF_ENABLE_DEVICE_ASSIGNMENT",
         "RELEASE_AVF_ENABLE_LLPVM_CHANGES",
+        "RELEASE_AVF_ENABLE_NETWORK",
         "RELEASE_HARDWARE_BLUETOOTH_RANGING_SERVICE",
         "RELEASE_UNLOCKED_STORAGE_API",
     ],