Revert "utils: use different artifacts for tfa-next on fvp"

This reverts commit 1eb7de0660330a1bd361413030523dd8c153ef04.

Now that the tfa-next jobs are public, so are their generated binaries.

Because of this, we should not upload said binaries to a public S3
bucket anymore.

Change-Id: I258ee2bf854876c6584aca2da8388c779384bace
Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>
3 files changed