tests/kms_plane: Reduce execution time by reducing source size and performing upscaling.
Execution time is way too high because of all the various conversion routines and inefficient accesses done by pixman on uncached memory. Fix it by reducing the source fb siaze, and using scaling to increase to span the entire crtc. Signed-off-by: Maarten Lankhorst <firstname.lastname@example.org> [mlankhorst: Set src w/h to upscaled fb w/h to remove a magic constant.] Reviewed-by: Rodrigo Siqueira <email@example.com>