ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60 curiosity board

Add device tree file for sam9x60 curiosity board.

Signed-off-by: Durai Manickam KR <durai.manickamkr@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230207110651.197268-9-durai.manickamkr@microchip.com