Do not use the obsolete NGX_SOCKADDRLEN macro.

The change in ac120e797d28 re-used the macro which was made obsolete
in adf25b8d0431.

src/http/modules/ngx_http_upstream_zone_module.c

diff --git a/src/http/modules/ngx_http_upstream_zone_module.c b/src/http/modules/ngx_http_upstream_zone_module.c
index d340b48..3229cfe 100644
--- a/src/http/modules/ngx_http_upstream_zone_module.c
+++ b/src/http/modules/ngx_http_upstream_zone_module.c
@@ -281,7 +281,7 @@
         dst->server.data = NULL;
     }
 
-    dst->sockaddr = ngx_slab_calloc_locked(pool, NGX_SOCKADDRLEN);
+    dst->sockaddr = ngx_slab_calloc_locked(pool, sizeof(ngx_sockaddr_t));
     if (dst->sockaddr == NULL) {
         goto failed;
     }

src/stream/ngx_stream_upstream_zone_module.c

diff --git a/src/stream/ngx_stream_upstream_zone_module.c b/src/stream/ngx_stream_upstream_zone_module.c
index 4f72188..80d42fa 100644
--- a/src/stream/ngx_stream_upstream_zone_module.c
+++ b/src/stream/ngx_stream_upstream_zone_module.c
@@ -278,7 +278,7 @@
         dst->server.data = NULL;
     }
 
-    dst->sockaddr = ngx_slab_calloc_locked(pool, NGX_SOCKADDRLEN);
+    dst->sockaddr = ngx_slab_calloc_locked(pool, sizeof(ngx_sockaddr_t));
     if (dst->sockaddr == NULL) {
         goto failed;
     }