Revert "[assembly] Remove bundles/drivers:utils"

This reverts commit 56cb58e389582df6a986ee5db0600a022350bbb7.

Reason for revert: broke builds in CI 
(https://ci.chromium.org/b/8776245451930870881)

Original change's description:
> [assembly] Remove bundles/drivers:utils
>
> These utilities have been moved to assembly.
>
> A few tools are moved to bootfs files instead of shell
> packages so that they can still be used for kernel development.
> They were not previously added because the shell packages were
> added to bootfs_labels (which does not add shell packages).
>
> Bug: b/289156449
> Change-Id: I1967f4ad4a50b177d340570c6d5fc40a84e9b6ff
> Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/878331
> Fuchsia-Auto-Submit: Aidan Wolter <awolter@google.com>
> Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
> Reviewed-by: Aaron Wood <aaronwood@google.com>

Bug: b/289156449
Change-Id: I636c60e7cf6030012d2f792a047869666699d6fd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/882013
Fuchsia-Auto-Submit: Oliver Newman <olivernewman@google.com>
Reviewed-by: RubberStamper 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>