use api.SandboxConfig instead of VmSpec for persistence
use api.SandboxConfig instead of VmSpec for persistence

Signed-off-by: Lai Jiangshan <b337eedf453972390e4695e362aeea2634ef4e0c@gmail.com>

gnawux/runv,gnawux/runv,hyperhq/runv,laijs/runv,laijs/runv,gnawux/runv,hyperhq/runv,laijs/runv,hyperhq/runv