ARM: dts: at91: sama7g5: Enable can0 and can1 support in sama7g5-ek

Enable the can0 and can1 controllers in sama7g5-ek board along with
its pin mux settings.

Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220222113924.25799-3-Hari.PrasathGE@microchip.com