ARM: dts: ast2500-evb: Add I2C devices

The EVB has an EEPROM on bus 3 and a LM75 temp sensor on bus 7. Enable
those busses we can test the I2C driver.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
1 file changed