layerman: update meta-uav

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
layerman: update meta-uav to fix mavconn packaging

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
layerman: enable meta-qt5

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>