exynos: Update environment macros a bit

Rework the default environment a bit to not use non-standard
CONFIG_ENV_... names and similar one-off CONFIG names.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/include/configs/trats2.h b/include/configs/trats2.h
index 4b1eff0..e5f2b0c 100644
--- a/include/configs/trats2.h
+++ b/include/configs/trats2.h
@@ -125,7 +125,7 @@
 		   "setenv spl_imgsize;" \
 		   "setenv spl_imgaddr;" \
 		   "setenv spl_addr_tmp;\0" \
-	CONFIG_EXTRA_ENV_ITB \
+	ENV_ITB \
 	"fdtaddr=40800000\0" \
 
 /* GPT */