ARM: dts: add twi nodes for atmel boards

Still use i2c-gpio on boards which have a SoC with a TWI IP which
doesn't have clock stretching in transmission mode.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
3 files changed