Disable features not availables in some platforms

rootfs/etc/nginx/template/nginx.tmpl

@@ -113,7 +113,7 @@ http {
     include /etc/nginx/mime.types;
     default_type text/html;
     
-    {{ if $cfg.UseBrotli }}
+    {{ if $cfg.EnableBrotli }}
     brotli on;
     brotli_comp_level {{ $cfg.BrotliLevel }};
     brotli_types {{ $cfg.BrotliTypes }};