[U-Boot] compulab trimslice build error due to 52658fda7abc ("compulab: eeprom: add support for defining eeprom i2c bus")

After commit 52658fda7abc ("compulab: eeprom: add support for defining eeprom i2c bus"), the trimslice board fails to build with:

.../board/compulab/common/eeprom.c: In function ‘cl_eeprom_read’: .../board/compulab/common/eeprom.c:37:24: error: ‘CONFIG_SYS_I2C_EEPROM_BUS’ undeclared (first use in this function) .../board/compulab/common/eeprom.c:37:24: note: each undeclared identifier is reported only once for each function it appears in

I have no idea if this EEPROM code should even run on TrimSlice or not. Can you take a look at the correct fix?