Replace the current license disclaimer in files by
a SPDX-License-Identifier.
License files are organized under LICENSES directory.
Pick-to: 6.5 6.6
Task-number: QTBUG-67283
Task-number: QTBUG-108364
Change-Id: If26e4d35c780db4a7982bb84872b251dad24716e
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
This is needed by WebAssembly
Pick-to: 6.3 6.2
Change-Id: I3e828d643d2780308514b2939db5a1b4032c66ac
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: David Skoland <david.skoland@qt.io>