monitor:configs:Rainier 4U: increase deviation

Increase the deviation setting from 15 to 18 on the two IBM Rainier 4U
models to match that of the other IBM systems.  There have been false
fails with the value at 15.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I515738163960da7f1497c74575ede8e4954d4c86
2 files changed