upgrade_info.json

@@ -2,8 +2,8 @@
 	"code":0,
 	"msg":"succ",
 	"data":{
-	"knob_version":1201,
-	"knob_url":"https://gitee.com/laidaixi/knob_ota/raw/master/knob_v1.2.1_beta.bin",
+	"knob_version":1200,
+	"knob_url":"https://gitee.com/laidaixi/knob_ota/raw/master/knob_v1.2.0_beta.bin",
 	"mcu_version":1002,
 	"mcu_url":"https://gitee.com/laidaixi/mcu_ota/raw/master/H220_SPLAN_V1001_beta.hex"
 	}