Update files using old header.LGPL3 to use header.LGPL
Update files using old header.FLD to use new header.FDL
Update files using old header.BSD to use new header.BSD

Change-Id: I36a67aaa8c3ca6c7946308defc9c03c3571a7d23
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>