This configures power management registers according to the 1.2.0 reference code drop. There are many inconsistencies with the documentation and I tried to note those with ?. This does not do the same for LynxPoint-H yet. Change-Id: I9b8f5c24a8b0931075a44398571c9b0d54cce6a6 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/2819 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>