powerpc/ppc4xx: Update gdsys board configurations

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/configs/gdppc440etx.h b/include/configs/gdppc440etx.h
index 3c59ff4..9efbb8e 100644
--- a/include/configs/gdppc440etx.h
+++ b/include/configs/gdppc440etx.h
@@ -50,6 +50,10 @@
 #define CONFIG_BOARD_EARLY_INIT_F	1	/* call board_early_init_f*/
 #define CONFIG_MISC_INIT_R		1	/* call misc_init_r()     */
 
+#undef CONFIG_ZERO_BOOTDELAY_CHECK     /* ignore keypress on bootdelay==0 */
+#define CONFIG_AUTOBOOT_KEYED          /* use key strings to stop autoboot */
+#define CONFIG_AUTOBOOT_STOP_STR " "
+
 /*
  * Base addresses -- Note these are effective addresses where the
  * actual resources get mapped (not physical addresses)