meta-facebook: yosemitev2: Add phosphor-pid-control.

Added phoshor-pid-control package for yosemiteV2 platform.

Tested : Built Facebook YosemiteV2 images and loaded on
the target hardware. We are able to see the fan
speed updates when inlet temperature updates.

(From meta-facebook rev: 256fdf1c496960923ac53b1ad0bad6141d3ee6ce)

Signed-off-by: Kumar Thangavel <thangavel.k@hcl.com>
Change-Id: Ibe04f0722f54e84909bbe81900c6e845168ba380
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>