powerpc/85xx: configure autocompletion support

because it's convenient.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h
index fca3cdd..7e901e1 100644
--- a/include/configs/P1_P2_RDB.h
+++ b/include/configs/P1_P2_RDB.h
@@ -518,6 +518,7 @@
  */
 #define CONFIG_SYS_LONGHELP			/* undef to save memory	*/
 #define CONFIG_CMDLINE_EDITING			/* Command-line editing */
+#define CONFIG_AUTO_COMPLETE			/* add autocompletion support */
 #define CONFIG_SYS_LOAD_ADDR	0x2000000	/* default load address */
 #define CONFIG_SYS_PROMPT	"=> "		/* Monitor Command Prompt */
 #if defined(CONFIG_CMD_KGDB)