CMake was picking up libtiff and libfreetype from Strawberry Perl
MinGW distribution. By specifying -DFEATURE_system_tiff=OFF and
-DFEATURE_system_freetype=OFF we should fix these problems.
-DFEATURE_system_jpeg=OFF was also added, even though tests are
not failing.
Task-number: QTBUG-84886
Change-Id: I324304bfbf8fcdb2de04ad0481eca1c7534a3cfd
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>