This commit renames olimex_a20_olinuxino_lime_mali to
olimex_a20_olinuxino_lime_legacy, because the upstream Linux kernel
now also supports using the Mali GPU.
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>