ARM: rmobile: Enable autocompletion on Gen2

This makes the shell so much more pleasant to use, so enable it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/rcar-gen2-common.h b/include/configs/rcar-gen2-common.h
index ad436fd..e47b02f 100644
--- a/include/configs/rcar-gen2-common.h
+++ b/include/configs/rcar-gen2-common.h
@@ -26,7 +26,7 @@
 #endif
 
 /* console */
-
+#define CONFIG_AUTO_COMPLETE
 #define CONFIG_SYS_LONGHELP
 #define CONFIG_SYS_PBSIZE		256
 #define CONFIG_SYS_BAUDRATE_TABLE	{ 38400, 115200 }