JSONMETER: Fix electricityPower LS110


git-svn-id: svn://svn.code.sf.net/p/fhem/code@5689 2b470e98-0d58-463d-a4d8-8e2adae1ed80
fix for single device devices-local.xml file


git-svn-id: svn://svn.code.sf.net/p/fhem/code@5690 2b470e98-0d58-463d-a4d8-8e2adae1ed80