Fix Box protocol speed units
Fix Box protocol speed units

jon-stumpf/traccar,vipien/traccar,5of9/traccar,ninioe/traccar,jon-stumpf/traccar,5of9/traccar,al3x1s/traccar,jon-stumpf/traccar,duke2906/traccar,AnshulJain1985/Roadcast-Tracker,ninioe/traccar,duke2906/traccar,renaudallard/traccar,jssenyange/traccar,jssenyange/traccar,stalien/traccar_test,joseant/traccar-1,tsmgeek/traccar,stalien/traccar_test,tsmgeek/traccar,jssenyange/traccar,orcoliver/traccar,vipien/traccar,orcoliver/traccar,tananaev/traccar,tananaev/traccar,renaudallard/traccar,AnshulJain1985/Roadcast-Tracker,ninioe/traccar,joseant/traccar-1,tsmgeek/traccar,tananaev/traccar,orcoliver/traccar,al3x1s/traccar