Set ignoreDbusMinMax for Stepwise
Set ignoreDbusMinMax for Stepwise

Temperature readings should not be in percent. Add
ignoreDbusMinMax as inheritFromDbus was removed.

Tested: modified fan floor by changing stepwise controller

Change-Id: I1bf4e15ca78bc894dc82dd68e787fd6fbd3d0aef
Signed-off-by: James Feist <9f787ca2e294231a0bf80dc589f168b98eea7133@linux.intel.com>

openbmc/phosphor-pid-control,openbmc/phosphor-pid-control