ee1b3f34c0
In variance partition low resolutions may use varianace based on 4x4 average for better partitioning. Increase the threshold for doing this at speed = 8. Improves speed by ~5%, with little loss, < 1%, on RTC_derf set. Change-Id: Ib5ec420832ccff887a06cb5e1d2c73199b093941