rockchip: Convert rockpro64-rk3399 to use standard boot

Drop the use of scripts and rely on standard boot for all operation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index 95cb27c..3ef9ffa 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -48,15 +48,12 @@
 #define ROCKCHIP_DEVICE_SETTINGS
 #endif
 
-#include <config_distro_bootcmd.h>
-#include <environment/distro/sf.h>
 #define CFG_EXTRA_ENV_SETTINGS \
 	ENV_MEM_LAYOUT_SETTINGS \
 	"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
 	"partitions=" PARTS_DEFAULT \
 	ROCKCHIP_DEVICE_SETTINGS \
-	BOOTENV \
-	BOOTENV_SF \
+	"boot_targets=" BOOT_TARGETS "\0" \
 	"altbootcmd=" \
 		"setenv boot_syslinux_conf extlinux/extlinux-rollback.conf;" \
 		"run distro_bootcmd\0"