ARM: dts: at91: sama5d2_xplained: add analog and digital filter for i2c

Add property for analog and digital filter for i2c1 and i2c2 nodes
for sama5d2_xplained

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/1568189911-31641-9-git-send-email-eugen.hristev@microchip.com


Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>