ok, another attempt to the build_opt_tbl problem:

ok, another attempt to the build_opt_tbl problem:
- create temp files and move them afterwards
- remove dummy option -b
- fix usage
- drop implicit creation of .c file if no --option is specified.

Now let's see if this fixes the issue. :-) We don't want to take 24s
instead of 6s to build an image reliably (Yes, yes, I know Tiano takes
over 20 minutes)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3783 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1