Add license header to file added in commit f0c5f330

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Change-Id: I4343f74857f8afdca277666a206d08d7a1167bbf
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

The 32bit compiler is required for creating v8 snapshots.

Task-number: QTBUG-65004
Task-number: QTBUG-64869
Change-Id: I0a7a351208768f0b12900fac14d3abd5c8d99fa2
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>