tree f0241e1516ff4a3974de62c1753658f592735d12
parent 0f4ca5c01b7aa72f54e032f955406daadebf3379
author William A. Kennington III <wak@google.com> 1750914181 -0700
committer William Kennington <wak@google.com> 1751057279 -0700

image_types_gbmc_dynamic: Move image descriptor to end

We have cases where the image only gets partially flashed due to
interruptions in the process. This causes the hoth descriptor validation
scheme to think there is a valid image, even though a full checksum
validation would fail. When an update process tries to activate this
image, it has to go through an extra powercycle in order to have hoth
invalidate it. Once invalidated it will then flash it correctly.

If we just ensure the image is always invalid before being fully
flashed, we don't need to worry about ever misidentifying it.

Tested: Built and verified a rome / spr / tpu image to show valid
offsets + size in the u-boot / kernel and newly injected descriptor
space near the end of the image.

Fusion-Link: https://fusion2.corp.google.com/f53aaa90-bc8b-3ca8-a31c-b27d977628d8
Fusion-Link: https://fusion2.corp.google.com/b475264f-f029-3fd6-a847-f65cc67fc6be
Fusion-Link: https://fusion2.corp.google.com/8f24e37f-9899-30aa-a357-ea7fec6ec85f
Fusion-Link: https://fusion2.corp.google.com/36679082-8f48-3309-90c8-4d1dc24c3ea0

Platforms-Affected: All
Google-Bug-Id: 427819900
Change-Id: I8a1f710d09218f7622d6c69173860397d8478764
Signed-off-by: William A. Kennington III <wak@google.com>
(cherry picked from commit 1fd823e6ae90904bf027cc20cb84e8446c3062e4)