The Comvetia LXR board is based on a i.MX6Q phyFLEX-i.MX6 Quad SoM from Phytec. Add a devicetree description for this board. Signed-off-by: Fabio Estevam <festevam@denx.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>