binfmt: Move argv copy into exec_module

and remove the related fields from struct binary_s

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

binfmt/binfmt_dumpmodule.c

@@ -58,7 +58,6 @@ int binfmt_dumpmodule(FAR const struct binary_s *bin)
     {
       binfo("Module:\n");
       binfo("  filename:  %s\n", bin->filename);
-      binfo("  argv:      %p\n", bin->argv);
       binfo("  entrypt:   %p\n", bin->entrypt);
       binfo("  mapped:    %p size=%zd\n", bin->mapped, bin->mapsize);
       binfo("  alloc:     %p %p %p\n", bin->alloc[0],