FROMLIST: virt: geniezone: Add dtb config support

Hypervisor might need to know the accurate address and size of dtb
passed from userspace. And then hypervisor would parse the dtb and get
vm information.

Change-Id: I23194d45f5c60555ba7fde9dd8d393443fd41310
Signed-off-by: Jerry Wang <ze-yu.wang@mediatek.com>
Signed-off-by: Liju-clr Chen <liju-clr.chen@mediatek.com>
Signed-off-by: Yi-De Wu <yi-de.wu@mediatek.com>
Bug: 280363874
Link: https://lore.kernel.org/lkml/20230727080005.14474-10-yi-de.wu@mediatek.com/