Move struct {Clat*, Tether4*, TetherStats*} to connectivity module

Needed because these struct classes should not be exposed.
Only used for the connectivity module and its tests.

Bug: 234160319
Test: atest ConnectivityCoverageTests

The moved files are identical.

diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/ClatEgress4Key.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/ClatEgress4Key.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/ClatEgress4Value.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/ClatEgress4Value.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/ClatIngress6Key.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/ClatIngress6Key.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/ClatIngress6Value.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/ClatIngress6Value.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/Tether4Key.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/Tether4Key.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/Tether4Value.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/Tether4Value.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/TetherStatsKey.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/TetherStatsKey.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/TetherStatsValue.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/TetherStatsValue.java
diff packages/modules/Connectivity/common/src/com/android/net/module/util/bpf/ClatEgress4Key.java frameworks/libs/net/common/device/com/android/net/module/util/bpf/ClatEgress4Key.java
(no diff)

Change-Id: I4ce8045150bdbf04c63c5262c58a0ebcc30d395c
diff --git a/Tethering/Android.bp b/Tethering/Android.bp
index 28edc8a..bfba5cd 100644
--- a/Tethering/Android.bp
+++ b/Tethering/Android.bp
@@ -37,6 +37,7 @@
     ],
     static_libs: [
         "androidx.annotation_annotation",
+        "connectivity-net-module-utils-bpf",
         "modules-utils-build",
         "modules-utils-statemachine",
         "networkstack-client",