Use netd_aidl_interface-unstable-java

Needed for TetheringCoverageTests.

Use unstable aidl for new api tetherOffload* and modified
parcel TetherStatsParcel in Tethering/BpfCoordinatorTest.

Bug: 150736748
Test: atest TetheringCoverageTests
Change-Id: I70e22e6d78feac8f153e746fad5bb512fc31bde1
diff --git a/Android.bp b/Android.bp
index efe8ff1..d0fdc4a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -88,7 +88,7 @@
     libs: ["unsupportedappusage"],
     static_libs: [
         "androidx.annotation_annotation",
-        "netd_aidl_interface-V3-java",
+        "netd_aidl_interface-unstable-java",
         "netlink-client",
         "networkstack-client",
         "datastallprotosnano",