The ls-ddr-phy package needs fiptool options that are not
available via the version from arm-trusted-firmware-tools.
This breaks build for layerscape with the recently added LX2160a:
create: unrecognized option '--ddr-immem-udimm-1d'
Use the tfa-layerscape variant again for now, but rename it to
fiptool-layerscape to indicate that it's a specific variant.
This reverts 84bc7d31e0 ("tfa-layerscape: don't build fiptool").
Fixes: f59d7aab2a ("layerscape: add ddr-phy package")
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
910b5d669f