Base devtree model on vpd
Base devtree model on vpd

Change-Id: I6b7f61748b487cb3fadf6ac96d1d052c6314b4d3
RTC: 88056
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/14876
Tested-by: Jenkins Server
Reviewed-by: WILLIAM G. HOFFA <7dd6aa5e78423995d9d7c7ecada5b77ee07f88cc@us.ibm.com>
Reviewed-by: Daniel M. Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

csmart/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,csmart/hostboot,Over-enthusiastic/hostboot,csmart/hostboot,csmart/hostboot,open-power/hostboot,open-power/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,csmart/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,alvintpwang/hostboot,alvintpwang/hostboot