* Baud Rate Generators

Currently defined compatibles:
fsl,cpm-brg
fsl,cpm1-brg
fsl,cpm2-brg

Properties:
- reg : There may be an arbitrary number of reg resources; BRG
  numbers are assigned to these in order.
- clock-frequency : Specifies the base frequency driving
  the BRG.

Example:
	brg@119f0 {
		compatible = "fsl,mpc8272-brg",
			     "fsl,cpm2-brg",
			     "fsl,cpm-brg";
		reg = <119f0 10 115f0 10>;
		clock-frequency = <d#25000000>;
	};