ARM: dts: at91: sama5d27_wlsom1: Add alias for i2c0

wlsom1 has an ATECC608A-TNGTLS Secure Element connected on the i2c0
bus. Add alias for the i2c device 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/20200413140922.154886-1-tudor.ambarus@microchip.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>