Wendal Chen 4a7de16746 remove: 移除air302和air640w的mqtt.lua, 更新sys.lua 4 gadi atpakaļ
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mqtt2.lua abb7e89631 update: mqtt2.lua移除低版本兼容性,要求底层必须带mqttcore.unpack 5 gadi atpakaļ
sys.lua 4a7de16746 remove: 移除air302和air640w的mqtt.lua, 更新sys.lua 4 gadi atpakaļ