Move Inet[4]AddressUtils to libs/net

The classes should not be picked up from frameworks/base, as they are
part of several mainline modules.

Bug: 151052811
Test: m; manual: flashed, wifi and telephony working
Test: atest NetworkStackCoverageTests
Change-Id: I62da3419408b7eb71ea5319e8717fbb22c76a94e
diff --git a/jarjar-rules-shared.txt b/jarjar-rules-shared.txt
index 7346b1a..7661743 100644
--- a/jarjar-rules-shared.txt
+++ b/jarjar-rules-shared.txt
@@ -1,7 +1,7 @@
 rule com.android.internal.util.** android.net.networkstack.util.@1
 
-rule android.net.shared.Inet4AddressUtils* android.net.networkstack.shared.Inet4AddressUtils@1
-rule android.net.shared.InetAddressUtils* android.net.networkstack.shared.InetAddressUtils@1
+# Classes from net-utils-framework-common
+rule com.android.net.module.util.** com.android.networkstack.util.@1
 
 # Ignore DhcpResultsParcelable, but jarjar DhcpResults
 # TODO: move DhcpResults into services.net and delete from here