This patch adds support to dump other registers than the primary

This patch adds support to dump other registers than the primary
pnp-style configuration registers, using the new option -e/--extra-dump.
This patch only adds dumping of the Environmental Controller
configuration registers for the IT8716f chip.

Signed-off-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl>
I (Carl-Daniel) checked the data sheets of the whole IT87[012] series
and although the environment controller is sometimes called fan
controller, the location of the register is the same for all models.

Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3117 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1