This module will load the various lowlevel cpuidle modules' implementations
during initialiation. If it finds one available module, it will change
the global gCpuIdleFunc as its own better one.
When idle, cpuidle module will select the best cstate and enter it by
calling the lowlevel module's implementation.
Signed-off-by: Yongcong Du <ycdu.vmcore@gmail.com>
Signed-off-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>