ARM: dts: keystone-k2g-evm: Add I2C EEPROM DT entry

K2G EVM has an onboard I2C EEPROM connected to I2C0. This patch adds
the necessary DT entry for the AT24CM01 EEPROM.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>