[Thread] Add VTS config

We need to make sure there is no duplicate binder call to HAL layer.
This patch fix this.

Test: atest VtsHalThreadNetworkTargetTest
Bug: 338556737
Change-Id: Ic414ec1099049ba5e7a0c17baffcd467aa910034
diff --git a/threadnetwork/aidl/vts/Android.bp b/threadnetwork/aidl/vts/Android.bp
index 864e885..931081b 100644
--- a/threadnetwork/aidl/vts/Android.bp
+++ b/threadnetwork/aidl/vts/Android.bp
@@ -31,6 +31,7 @@
     static_libs: [
         "android.hardware.threadnetwork-V1-ndk",
     ],
+    test_config: "VtsHalThreadNetworkTargetTest.xml",
     test_suites: [
         "general-tests",
         "vts",