ARM: dts: at91: sama5d2_xplained: Add aliases for the dedicated I2C IPs

The sama5d2 SoC has two dedicated I2C IPs that are enabled on
sama5d2_xplained. Add alias for the i2c devices to not rely on
probe order for the i2c device numbering.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200518114802.253660-1-tudor.ambarus@microchip.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

arch/arm/boot/dts/at91-sama5d2_xplained.dts

@@ -18,6 +18,8 @@ / {
 
 	aliases {
 		serial0 = &uart1;	/* DBGU */
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
 		i2c2 = &i2c2;		/* XPRO EXT2 */
 	};