Similarly to flashchips array, this patch intends to make the table

Similarly to flashchips array, this patch intends to make the table
board_pciid_enables more readable.

Signed-off-by: Stephan Guilloux <stephan.guilloux@free.fr>
> What real problem does this solve?

1. Next time someone adds a new struct member, we avoid mistakes of
ordering of initializers
2. we avoid mistakes in the first place.

The .x = y stuff was added for a (good) reason, I think this is an
improvement.
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3861 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1