Qt Quick Compiler sources codes are not released for customers, so they
cannot build it for themselves. Instead copy qtquickcompiler binary from
the SDK where we have both linux and mingw binaries available.

Change-Id: I697885365d98df394164a15e2517c7c473ac91e5
Reviewed-by: Teemu Holappa <teemu.holappa@theqtcompany.com>