istepdispatcher: When trying to set the watchdog, clear DONT_STOP

We intend to actually stop the watchdog so allow the set command stop it
as defined in the IPMI spec.

Resolves #137

Signed-off-by: William A. Kennington III <wak@google.com>
Change-Id: I07152602dd0c03c0224a20e5bea3d4ff804fc093
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/58546
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/usr/initservice/istepdispatcher/istepdispatcher.C

@@ -2888,9 +2888,7 @@ void IStepDispatcher::istepPauseSet(uint8_t i_step, uint8_t i_substep)
 #ifdef CONFIG_BMC_IPMI
             errlHndl_t err_ipmi = IPMIWATCHDOG::setWatchDogTimer(
                                IPMIWATCHDOG::DEFAULT_WATCHDOG_COUNTDOWN,
-                               static_cast<uint8_t>
-                                          (IPMIWATCHDOG::DO_NOT_STOP |
-                                           IPMIWATCHDOG::BIOS_FRB2), // default
+                               IPMIWATCHDOG::BIOS_FRB2,
                                IPMIWATCHDOG::NO_ACTIONS); // do nothing when
                                                           // timeout occurs
             if(err_ipmi)