Merge topic 'fix-test-sdl2-inclusion'

01bcc0b6 Add TestSDL2 only for emscripten platform

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Reviewed-by: Cory Quammen <cory.quammen@kitware.com>
Merge-request: !11914