XfrmController - fix bugprone-sizeof-expression warning

Fixes:
  system/netd/server/XfrmController.cpp:1280:12: warning: suspicious usage of 'sizeof(A*)'; pointer to aggregate [bugprone-sizeof-expression]

Test: builds
Bug: 153035880
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: If3d37a22412b1a08e0356b7a36c038a37c946ed7
Merged-In: If3d37a22412b1a08e0356b7a36c038a37c946ed7
diff --git a/server/XfrmController.h b/server/XfrmController.h
index a38bbeb..587647c 100644
--- a/server/XfrmController.h
+++ b/server/XfrmController.h
@@ -370,7 +370,7 @@
     static netdutils::Status deleteSecurityAssociation(const XfrmCommonInfo& record,
                                                        const XfrmSocket& sock);
     static int fillUserSaId(const XfrmCommonInfo& record, xfrm_usersa_id* said);
-    static int fillUserTemplate(const XfrmSpInfo& record, xfrm_user_tmpl* tmpl);
+    static void fillUserTemplate(const XfrmSpInfo& record, xfrm_user_tmpl* tmpl);
 
     static int fillUserSpInfo(const XfrmSpInfo& record, XfrmDirection direction,
                               xfrm_userpolicy_info* usersp);