arm: kirkwood: Enable bootstd for Pogo V4 board

Enable bootstd for Pogo V4 board, and remove distroboot.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/configs/pogo_v4_defconfig b/configs/pogo_v4_defconfig
index 2747c3c..ff6411d 100644
--- a/configs/pogo_v4_defconfig
+++ b/configs/pogo_v4_defconfig
@@ -17,7 +17,8 @@
 CONFIG_SYS_LOAD_ADDR=0x800000
 CONFIG_PCI=y
 CONFIG_LTO=y
-CONFIG_DISTRO_DEFAULTS=y
+CONFIG_BOOTSTD_FULL=y
+CONFIG_BOOTSTD_DEFAULTS=y
 CONFIG_BOOTSTAGE=y
 CONFIG_SHOW_BOOT_PROGRESS=y
 CONFIG_BOOTDELAY=10