Reland "Migrate android debug artifacts to gn+ninja."

This reverts commit f0ca822b809d38beb23e2dfc12d124fcafba5376.

Reason for revert: The problems this CL was reverted for was actually caused by the removal of dimensions from the build drones.

Original change's description:
> Revert "Migrate android debug artifacts to gn+ninja."
>
> This reverts commit 42e256d74dc9dc64f0181139016d214286c80fa1.
>
> Reason for revert: Android AOT builds are failing.
>
> Original change's description:
> > Migrate android debug artifacts to gn+ninja.
> >
> > These artifacts have been validated for several months on staging and
> > engine v2 recipes.
> >
> > Change-Id: I94a3fc37df239f547a7eff38c8439041eb395188
> > Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/40660
> > Reviewed-by: Zach Anderson <zra@google.com>
> > Commit-Queue: Godofredo Contreras <godofredoc@google.com>
>
> TBR=zra@google.com,godofredoc@google.com,flutter-scoped@luci-project-accounts.iam.gserviceaccount.com
>
> Change-Id: Ic4cec8e1e0dc3a59fecd0200149b6d51f1b19f75
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/40740
> Commit-Queue: Godofredo Contreras <godofredoc@google.com>
> Reviewed-by: Godofredo Contreras <godofredoc@google.com>

# Not skipping CQ checks because this is a reland.

Change-Id: Ia07d2c9e780c39c02d604729c79296cc6fb34caf
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/40780
Reviewed-by: Godofredo Contreras <godofredoc@google.com>
Commit-Queue: Godofredo Contreras <godofredoc@google.com>
Reviewed-by: Zach Anderson <zra@google.com>