"Screen Scaling Filter" translated

https://github.com/hrydgard/ppsspp/commit/d234ab03c68c02a7f74367636ae22a3357f15abc#diff-200fa3b2e859f1837cd62623c1d1bad6

https://github.com/hrydgard/ppsspp/commit/d234ab03c68c02a7f74367636ae22a3357f15abc#diff-3b44d099a0c420c43448f51fdcd583ac