meta-ibm: All witherspoon tacomas are air cooled

Set the configuration file to phosphor-cooling-type to set all
witherspoon tacomas to be air cooled only.

Tested:
    Removed DEVICE & CODE on witherspoon config to see always be set to
air cooled
    Updated config on witherspoon tacoma and restarted service to see
always be set to air cooled

Change-Id: I1240ba02d71890df5f97bcc20122b0f9ba5fa307
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
1 file changed