platforms/drm: Fix a typo in DrmCrtc::setLegacyCursor()
bufferDirty should be reset so the legacy cursor is set after switching between VTs or turning outputs back on.
5.23 should be unaffected as relevant cursor refactoring is in git master only.
bufferDirty should be reset so the legacy cursor is set after switching between VTs or turning outputs back on.
5.23 should be unaffected as relevant cursor refactoring is in git master only.