ARM: dts: at91: sama5d4_xplained: add digital filter for i2c

Add property for digital filter for i2c0 node sama5d4_xplained

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/1568189911-31641-10-git-send-email-eugen.hristev@microchip.com


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