meta-romulus: Add phosphor-cooling-type service

Romulus is air-cooled machine, configure phosphor-cooling-type to always
set AirCooled to true and WaterCooled to false.

Change-Id: I3b3e477c1b45ff9fb9a4c37ca837cccbb1bf07fa
Signed-off-by: Lei YU <mine260309@gmail.com>
4 files changed