drivers: i2c_slave: eeprom: fixes incorrect declaration
drivers: i2c_slave: eeprom: fixes incorrect declaration

This commit fixes an incorrect declaration of the buffer_size member
of the i2c_eeprom_slave_config struct.

Signed-off-by: Steven Slupsky <3dc7ae64181eb0aabccfd4b5e04f43aed07e50e1@gmail.com>

galak/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,nashif/zephyr,Vudentz/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,nashif/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,galak/zephyr,finikorg/zephyr,Vudentz/zephyr