Maximilian Thuermer found a bug where the HT link capability code was always

Maximilian Thuermer found a bug where the HT link capability code was always
updating the passed value to the next link offset even when it was on the
requested link (cap_count).

Maximilian also found a bug where the linktype was still getting attributes
even when it wasn't initialized.

This should fix the HT problems for Fam10 C2. There are still issues with the
microcode which need to be resolved.

Signed-off-by: Marc Jones <marcj303@gmail.com>
Acked-by: Ward Vandewege <ward@gnu.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4358 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1