rename CFG_ENV_IS_IN_EEPROM in CONFIG_ENV_IS_IN_EEPROM

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/lib_m68k/board.c b/lib_m68k/board.c
index 4fee35a..a80ec2d 100644
--- a/lib_m68k/board.c
+++ b/lib_m68k/board.c
@@ -568,7 +568,7 @@
 	malloc_bin_reloc ();
 
 #ifdef CONFIG_SPI
-# if !defined(CFG_ENV_IS_IN_EEPROM)
+# if !defined(CONFIG_ENV_IS_IN_EEPROM)
 	spi_init_f ();
 # endif
 	spi_init_r ();