x86: Enable bootstage features

Allow measuring of boot time using bootstage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/configs/x86-common.h b/include/configs/x86-common.h
index ecedfc3..66d4894 100644
--- a/include/configs/x86-common.h
+++ b/include/configs/x86-common.h
@@ -245,6 +245,9 @@
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_HOSTNAME
 
+#define CONFIG_BOOTSTAGE
+#define CONFIG_CMD_BOOTSTAGE
+
 #define CONFIG_CMD_USB
 
 #define CONFIG_EXTRA_ENV_SETTINGS \