compulab: eeprom: add default eeprom bus

Add default eeprom bus setting.
This addresses the trimslice compile error that was introduced
with the addition of this setting.

Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c
index 85442cd..2df3ada 100644
--- a/board/compulab/common/eeprom.c
+++ b/board/compulab/common/eeprom.c
@@ -15,6 +15,10 @@
 # define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
 #endif
 
+#ifndef CONFIG_SYS_I2C_EEPROM_BUS
+#define CONFIG_SYS_I2C_EEPROM_BUS	0
+#endif
+
 #define EEPROM_LAYOUT_VER_OFFSET	44
 #define BOARD_SERIAL_OFFSET		20
 #define BOARD_SERIAL_OFFSET_LEGACY	8