* Freescale PQ3 and QorIQ based Cache SRAM

Freescale's mpc85xx and some QorIQ platforms provide an
option of configuring a part of (or full) cache memory
as SRAM. This cache SRAM representation in the device
tree should be done as under:-

Required properties:

- compatible : should be "fsl,p2020-cache-sram"
- fsl,cache-sram-ctlr-handle : points to the L2 controller
- reg : offset and length of the cache-sram.

Example:

cache-sram@fff00000 {
	fsl,cache-sram-ctlr-handle = <&L2>;
	reg = <0 0xfff00000 0 0x10000>;
	compatible = "fsl,p2020-cache-sram";
};