ClatdController::ClatdTracker - rename 'dst' to 'pfx96'

Whether something is dst or src depends on direction,
but 96-bit prefix is always meaningful for clat translation.

Test: atest netd_unit_test
Bug: 65674744
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Id7d2177d5282709db865b2a86e6c9b7cb6778e80
diff --git a/server/ClatdController.h b/server/ClatdController.h
index d2eafd9..5e97b73 100644
--- a/server/ClatdController.h
+++ b/server/ClatdController.h
@@ -57,8 +57,8 @@
         char v4Str[INET_ADDRSTRLEN];
         in6_addr v6;
         char v6Str[INET6_ADDRSTRLEN];
-        in6_addr dst;
-        char dstString[INET6_ADDRSTRLEN];
+        in6_addr pfx96;
+        char pfx96String[INET6_ADDRSTRLEN];
 
         ClatdTracker() = default;
         explicit ClatdTracker(const NetworkController* netCtrl) : netCtrl(netCtrl) {}