ARM: socfpga: dts: add eeprom and rtc on i2c0

The Altera Cyclone5 and Arria5 devkit has an EEPROM and a RTC on the
board. This patch adds support for them.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
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v2: Remove LCD as the driver has not been upstreamed.