meta-gsj: phosphor-pid-control: Add fan control algorithm

This change adds fan control function with following features.

1) Fans will be at full speed while rebooting or a sensor is not ready.
2) Detect different skus automatically.

Signed-off-by: Hank Liou <Hank.Liou@quantatw.com>
Change-Id: I44b3501bf1991d023957f2906e932d77709d8ab4
7 files changed