ARM: dts: at91: sama5d27_som1_ek: add i2c filters properties

Add properties for i2c filters for i2c0 and i2c1 on sama5d27_som1_ek.
Noise is affecting communication on i2c for example when connecting i2c
camera sensors.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/1575531818-21332-1-git-send-email-eugen.hristev@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Author: ehristev

arch/arm/boot/dts/at91-sama5d27_som1_ek.dts

@@ -131,6 +131,9 @@
 					interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
 					dmas = <0>, <0>;
 					dma-names = "tx", "rx";
+					i2c-analog-filter;
+					i2c-digital-filter;
+					i2c-digital-filter-width-ns = <35>;
 					#address-cells = <1>;
 					#size-cells = <0>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 20>;
@@ -246,6 +249,9 @@
 
 			i2c1: i2c@fc028000 {
 				dmas = <0>, <0>;
+				i2c-analog-filter;
+				i2c-digital-filter;
+				i2c-digital-filter-width-ns = <35>;
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_i2c1_default>;
 				status = "okay";