SAMSUNG Exynos SoC series CHIPID subsystem

Required properties:
- compatible : Should at least contain "samsung,exynos4210-chipid";
  For Exynos5433 SoC should also contain "samsung,exynos5433-chipid".

- reg: Offset and length of the register set. For "samsung,exynos5433-chipid"
  compatible this property should contain at least two entries, i.e. it should
  describe two IO register regions, where the second one corresponds to
  the ABB registers region.

Example:
	chipid@10000000 {
		compatible = "samsung,exynos4210-chipid";
		reg = <0x10000000 0x100>;
	};
