orc: version bump 0.4.19 -> 0.4.21

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
memtester: version bump 4.0.8 -> 4.3.0

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>