1.remove check board version
2.add pmic s5m8767a based on max8998
3.add hardware i2c config, no test for exynos4412
4.set sn75lvds83b shutdown high. always enable
       modified:   board/samsung/exynos4412/exynos4412.c
       modified:   drivers/power/pmic/Makefile
       new file:   drivers/power/pmic/pmic_s5m8767a.c
       modified:   include/configs/exynos4412.h
       new file:   include/power/s5m8767a_pmic.h