stats.lua: fix scrolling for page 2

Scrolling for page 2 was disabled in 777f69b
but the keys were still bound, so this was clearly a mistake.

player/lua/stats.lua

@@ -1096,7 +1096,7 @@ local function vo_stats()
     add_header(header)
     append_perfdata(header, content, true, true)
     header = {table.concat(header)}
-    return finalize_page(header, content, false)
+    return finalize_page(header, content, true)
 end
 
 local kbinfo_lines = nil