ARM: s3c24xx: MINI2440 needs I2C for EEPROM_AT24

If I2C is disabled, we cannot build the AT24 driver, so we
should not select it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>