[LTP] [PATCH] isofs: Convert to new library

[Petr Vorel]

Hi Joerg,

thanks a lot for your patch, merged with few minor changes:
(mostly changing style + remove forgotten 'tst_resm TFAIL \',
use ROD_SILENT and remove commented out '# "loop,sbsector=32"').

You correctly removed getopt options: -n just set NO_CLEANUP, which is not used
any more on test.sh. Both libraries support TST_NO_CLEANUP, so we should
document it (going to send a patch).

Kind regards,
Petr