Removed get_mac and set_mac procedures from device structure, kernel does not need them. Added link state detection capabilities for kernel and some drivers. git-svn-id: svn://kolibrios.org@3346 a494cfbc-eb01-0410-851d-a64ba20cac60
git-svn-id: svn://kolibrios.org@3324 a494cfbc-eb01-0410-851d-a64ba20cac60