Add the CM DSP library to the device-specific effects table

Copied from a pull request to my repo by klusark.  Credit to him.
hammerhead: add charging led support

Also introduces led priority handling for
battery vs notification vs attention
(copied from jf-common).

Requires the hammerhead kernel led
always on support patch.

Change-Id: I1a2f3aae457c6d7e4e3c3f9ca39cbe42d39c3bc2
hammerhead: disable cpu-boost

* The CPU-boost driver doesn't seem to behave correctly quite yet,
  disable it until it can be fixed.

Change-Id: Idec7151b6324d182828c748ff781de92d320e4f9