ibm: tacoma: Update air/water GPIO

On witherspoon-tacoma the GPIO that specifies if the system is water
cooled is Q7 (135).  Update phosphor-cooling-type's config file
appropriately.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Icb6e31fe17e815598e0431f8962355e09541c525
1 file changed