board: dlvision: Reduce memory footprint

Tune dlvision configuration similar to other gdsys boards to reduce memory
footprint.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/dlvision.h

@@ -35,6 +35,7 @@
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE	/* enable fit_format_{error,warning}() */
+#define CONFIG_FIT_DISABLE_SHA256
 
 #define CONFIG_ENV_IS_IN_FLASH	/* use FLASH for environment vars */
 
@@ -59,8 +60,14 @@
 /*
  * Commands additional to the ones defined in amcc-common.h
  */
-#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DTT
+#undef CONFIG_CMD_DHCP
+#undef CONFIG_CMD_DIAG
 #undef CONFIG_CMD_EEPROM
+#undef CONFIG_CMD_ELF
+#undef CONFIG_CMD_I2C
+#undef CONFIG_CMD_IRQ
+#undef CONFIG_CMD_NFS
 
 /*
  * SDRAM configuration (please see cpu/ppc/sdram.[ch])