Thread: simulate radio over Ethernet on Cuttlefish

This commit simulates Thread radio over Ethernet on cuttlefish.

This enables two cuttlefish instances to communicate over Thread.

Test: presubmit
Bug: 329188649

Change-Id: I48b20a9eb0bbc535e67266ca9cf7e4bbc5a676d4
diff --git a/threadnetwork/aidl/default/threadnetwork-service.rc b/threadnetwork/aidl/default/threadnetwork-service.rc
index 3b889eb..a2ac0f7 100644
--- a/threadnetwork/aidl/default/threadnetwork-service.rc
+++ b/threadnetwork/aidl/default/threadnetwork-service.rc
@@ -1,3 +1,3 @@
-service vendor.threadnetwork_hal /apex/com.android.hardware.threadnetwork/bin/hw/android.hardware.threadnetwork-service spinel+hdlc+forkpty:///apex/com.android.hardware.threadnetwork/bin/ot-rcp?forkpty-arg=1
+service vendor.threadnetwork_hal /apex/com.android.hardware.threadnetwork/bin/hw/android.hardware.threadnetwork-service
     class hal
     user thread_network