Add the support of pre-cooked content for the LD version script. The
content can be generated without using the perl script at configure
or build time.
Change-Id: I1316e114a1d5550b2fdcf3482a51f336fb311a29
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
