- Add disable-gpu-when-using-nouveau-boo-1005323.diff. Disables the
use of the gpu by webengine when the nouveau opengl driver is
detected since nouveau doesn't support rendering from different
threads. Also, allows to use two environment variables
QT_WEBENGINE_DISABLE_GPU to force the disabling of the gpu and
QT_WEBENGINE_DISABLE_NOUVEAU_WORKAROUND to disable the detection
of nouveau, just in case someone wants to try with newer nouveau
releases (boo#1005323, boo#997171).