Fix i2cSetupMasters bug for Centaurs
Fix i2cSetupMasters bug for Centaurs

With the code change for FSI I2C support scom registers are now
calculated.  There was a case in i2cSetupMasters() where the engine
parameter was not set and it created an errant scom register access.
This case has been fixed.

Change-Id: I1fd2e25720d86161142fccae8acd0a7924d22be5
RTC: 109926
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/14305
Reviewed-by: STEPHEN M. CPREK <449c81c8ca240ee26e6e5e8e94a7cb83f7b02ee8@us.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

Over-enthusiastic/hostboot,csmart/hostboot,csmart/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,csmart/hostboot,alvintpwang/hostboot,alvintpwang/hostboot,open-power/hostboot,csmart/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,csmart/hostboot