rockchip: Move to standard boot

Drop the distro-boot scripts and use standard boot instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
diff --git a/include/configs/rk3368_common.h b/include/configs/rk3368_common.h
index 9aa256b..ccb5369 100644
--- a/include/configs/rk3368_common.h
+++ b/include/configs/rk3368_common.h
@@ -23,11 +23,9 @@
 	"kernel_addr_r=0x280000\0" \
 	"ramdisk_addr_r=0x5bf0000\0"
 
-#include <config_distro_bootcmd.h>
-
 #define CFG_EXTRA_ENV_SETTINGS \
 	"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
-	ENV_MEM_LAYOUT_SETTINGS	\
-	BOOTENV
+	ENV_MEM_LAYOUT_SETTINGS \
+	"boot_targets=" BOOT_TARGETS "\0"
 
 #endif