ARM: dts: at91: sama5d2: fix compilation warning

Fix the following compilation warning:
Warning (simple_bus_reg): /ahb/apb/resistive-touch: missing or empty reg/ranges property

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220615080633.1881196-1-claudiu.beznea@microchip.com