arm: mvebu: Enable bootstd for Thecus N2350 board

Enable bootstd for Thecus N2350 board, and remove distroboot.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/n2350_defconfig b/configs/n2350_defconfig
index 109f0e10..0713574 100644
--- a/configs/n2350_defconfig
+++ b/configs/n2350_defconfig
@@ -29,7 +29,8 @@
 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