octopus: Enable multiboot images

Enable multiboot support for booting Zircon kernels.

BRANCH=octopus
TEST=none

Change-Id: I0fe9fc4dabee752d807ff3aa7c5275aaa30a2f8d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/1679104
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Karthikeyan Ramasubramanian <kramasub@chromium.org>
Tested-by: Venkatesh Srinivas <venkateshs@google.com>
Commit-Queue: Venkatesh Srinivas <venkateshs@google.com>
1 file changed