Add support for the Innolux AT070TN92 panel.
Signed-off-by: NRiccardo Bortolato <bortolato@navaltechitalia.it>
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>