[U-Boot] EXYNOS4X12: Adds for ORIGEN_QUAD board

[Jeong-Hyeon Kim]

This patches are needs patches posted by Chander Kashyap.
[U-Boot] EXYNOS: EXYNOS4X12: extract Exynos4x12 IPs clock frequency
[U-Boot,Resend,v2,1/3] EXYNOS: EXYNOS4X12: Populate Exynos4x12 register addresses
[U-Boot,Resend,v2,2/3] EXYNOS: EXYNOS4X12: Add clock structure for EXYNOS4X12
[U-Boot,Resend,v2,3/3] EXYNOS: EXYNOS4X12: Add gpio structure for EXYNOS4X12

Patches:
[PATCH v2 1/2] EXYNOS4: Add pinmux support for UART
[PATCH v2 2/2] EXYNOS4: Add ORIGEN_QUAD board support