Samsung S5P/EXYNOS SoC series JPEG codec

Required properties:

- compatible	: should be one of:
		  "samsung,s5pv210-jpeg", "samsung,exynos4210-jpeg",
		  "samsung,exynos3250-jpeg", "samsung,exynos5420-jpeg";
- reg		: address and length of the JPEG codec IP register set;
- interrupts	: specifies the JPEG codec IP interrupt;
- clock-names   : should contain:
		   - "jpeg" for the core gate clock,
		   - "sclk" for the special clock (optional).
- clocks	: should contain the clock specifier and clock ID list
		  matching entries in the clock-names property; from
		  the common clock bindings.
