Add VM configure files for Intel apl-mrb and dnv-cb2 platforms.
The board specific config header is named as partition_config.h and
the PCI passthrough device list is named as pt_dev.c under
hypervisor/arch/x86/configs/$CONFIG_BOARD folder.
Tracked-On: #2291
Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
