增加ota文件系统编译方法；（注意每次swupdate_make_recovery_img需要删除根目录和./lichee/linux下的.config和.config.old）

device/config/chips/v851s3/configs/fastboot_sl100_front/linux/sys_partition_nor.fex

@@ -47,47 +47,49 @@ size = 16
 
 [partition]
     name         = boot
-    size         = 6272
-#   size         = 7040
+    size         = 6016
     downloadfile = "boot.fex"
     user_type    = 0x8000
 
-;[partition]
-;    name         = boot_backup
-;    size         = 7040
-;    downloadfile = "boot.fex"
-;    user_type    = 0x8000
-
 [partition]
     name         = rootfs
-    ;size         = 12288
     size         = 4864
     downloadfile = "rootfs.fex"
     user_type    = 0x8000
 
-;[partition]
-;    name         = rootfs_backup
-;    size         = 11264
-;    downloadfile = "rootfs.fex"
-;    user_type    = 0x8000
-
 [partition]
     name         = extend
-    size         = 30464
+    size         = 11264
     downloadfile = "usr.fex"
     user_type    = 0x8000
 
 ;[partition]
-;    name         = extend_backup
-;    size         = 3072
-;    downloadfile = "usr.fex"
+;    name         = usrapp
+;    size         = 4864
+;    downloadfile = "appimg.fex"
 ;    user_type    = 0x8000
 
+[partition]
+    name         = recovery
+    size         = 4992
+    downloadfile = "recovery.fex"
+    user_type    = 0x8000
+	
+;[partition]
+;    name         = recoveryapp
+;    size         = 2560
+;    downloadfile = "recoveryimg.fex"
+;    user_type    = 0x8000	
+
 [partition]
     name         = rootfs_data
     size         = 1024
     user_type    = 0x8000
 
+
+
+
+
 ;[partition]
 ;    name         = private
 ;    size         = 1024