mainboard/intel: Add skeleton for Apollolake RVP board family

RVP1 board comes with DDR3 SODIMMs and discrete VRs.
RVP2 board uses LPDDR3 and PMIC.

Change-Id: I3e47c157c49ad55ff1ba824672ac2630a64a6037
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13298
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
5 files changed