SHELL: Add go package for shell-encryption

The new version of dev-go/protobuf requires explicitly specifying
the go_package inside proto file to be included.

That change already has been done in the upstream, see
http://cr/410267160.

At the moment, the syncing between the upstream and Chromium's library
version is broken. There is a CL depending on that change
(i.e. http://crrev/c/3252922). Therefore, the workaround was required
until the syncing will be fixed.

Bug: b/204473963, b/205713251
Change-Id: I36427ca57f62d2f743e6b4e2f02ae4c95f6caeea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3306585
Reviewed-by: Yue Zhang <yuezhanggg@chromium.org>
Commit-Queue: Amr Aboelkher <amraboelkher@chromium.org>
Cr-Commit-Position: refs/heads/main@{#946598}
NOKEYCHECK=True
GitOrigin-RevId: 8601ac0dd0a5901edf668e5361b3605cb60636fb
2 files changed