Add Wifi name to notification drawer when Wifi is connected

compared to 4.3 we do not make this optional any more. If it is connected
it will show up in the notification drawer permanently and behaves same
like the carrier label

[log]

Change-Id: I664347769804dbeaef3ccf7efceedeb6cfa022fa
log output

Change-Id: I2d7ca42874add18324df5529d5e6a205ccff3e6e