[U-Boot] [PATCH v3 0/4] ARM: EXYNOS: add display driver for EXYNOS SoC

[Donghwa Lee]

This patch is for display driver version 3 of EXYNOS SoC.

[1/4]: 	ARM: EXYNOS: definition of system registers
	- to contorl FIMD of LBLK0 bypass selection, add missed 
	definitions of system register
[2/4]: 	ARM: EXYNOS:  add data structure for EXYNOS display driver
	- It is needed to specific vidinfo_t data structure for 
	EXYNOS display driver.
[3/4]: 	ARM: EXYNOS: add exynos lcd clock interface
	- Is is newly defined to interface to get lcd source clock.
[4/4]: ARM: EXYNOS: support EXYNOS display driver


change of v2: 
	- define missing function declaration
	- correct the wrong return value for some function
	- etc

Thank you,
Donghwa Lee