arm: mvebu: Enable bootstd for Synology DS116 board

Enable bootstd for Synology DS116 board, and remove distroboot.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/ds116_defconfig b/configs/ds116_defconfig
index 0cd546c..2437be7 100644
--- a/configs/ds116_defconfig
+++ b/configs/ds116_defconfig
@@ -28,7 +28,8 @@
 CONFIG_PCI=y
 CONFIG_DEBUG_UART=y
 CONFIG_AHCI=y
-CONFIG_DISTRO_DEFAULTS=y
+CONFIG_BOOTSTD_FULL=y
+CONFIG_BOOTSTD_DEFAULTS=y
 CONFIG_BOOTDELAY=10
 CONFIG_USE_PREBOOT=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y