tfa-next: include bl31.{bin,elf} in archive

Currently collect_build_artefacts() only looks in $tf_build_root for
*.bin/*.elf files to copy into the archive.

Since the Rust bl31 binary and elf files are placed in the rust/target
dir, they are not currently archived by the Jenkins CI.

Sym link bl31.{bin,elf} into $tf_build_root so they can be archived with
the rest.

Change-Id: I9eb16ba4eff1ff1e163367c38afe4231da388016
Signed-off-by: Zachary Leaf <zachary.leaf@arm.com>
1 file changed