ypr0-ypr1 firmware tools fix

fixed a bug concerning bytes padding, since it wasn't correctly
implemented regarding original firmware structure.
This fixes ROM generation especially for ypr1.

Change-Id: I1a40fb4bb8f9d6b005d694246123e314c4d19b49
Reviewed-on: http://gerrit.rockbox.org/616
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
1 file changed