Samsung DTS ARM changes for v5.7

1. Various fixes:
 - Reboot of some Odroid Exynos4412-based boards,
 - MMC regulators on Arndale5250,
 - Memory mapping on Artik5,
 - GPU power domain on Exynos542x boards,
 - LCD SPI polarity on UniversalC210,
2. Add thermal cooling of GPU on Odroid XU3/XU4 family,
3. Add dynamic-power-coefficient to Exynos5422 for energy model.