Samsung Device Tree updates and improvements for v4.7: 1. Enable accelerated AES (Security SubSystem) on Exynos4412-based boards. 2. Enable HDMI CEC on Exynos4412-based Odroid. 3. Add regulator supplies for eMMC/SD on Odroid XU3/XU4. 4. Fix DTC unit name warnings. 5. Merge topic branch of new Artik5 board.