Modify device name according to vendor on first boot.
diff --git a/device.rc b/device.rc
new file mode 100644
index 0000000..3d0fc52
--- /dev/null
+++ b/device.rc
@@ -0,0 +1,2 @@
+on post-fs
+    exec u:r:phhsu_daemon:s0 root -- /system/bin/change-device-name.sh