netlabel: Fix compilation warnings in net/netlabel/netlabel_addrlist.c

Enable netlabel auditing functions only when CONFIG_AUDIT is set

Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Paul Moore <paul.moore@hp.com>
diff --git a/net/netlabel/netlabel_addrlist.c b/net/netlabel/netlabel_addrlist.c
index b0925a3..249f6b9 100644
--- a/net/netlabel/netlabel_addrlist.c
+++ b/net/netlabel/netlabel_addrlist.c
@@ -315,6 +315,7 @@
  * Audit Helper Functions
  */
 
+#ifdef CONFIG_AUDIT
 /**
  * netlbl_af4list_audit_addr - Audit an IPv4 address
  * @audit_buf: audit buffer
@@ -386,3 +387,4 @@
 	}
 }
 #endif /* IPv6 */
+#endif /* CONFIG_AUDIT */