Fix testSbeMessagePassingDefaultPath test case
Fix testSbeMessagePassingDefaultPath test case

Re-enabled testSbeMessagePassingDefaultPath which was failing
because of two reasons:
- Mismatch in the SBE message header tested with because default
  path dynamically changes the size of dataSize, so it's not comparable
  to hard-coded expected message header
- Default path successfully sends SBE message, therefore when checking
  the state of the CFAM register it must be checked against SBE_MSG_COMPLETE

Change-Id: I3fff13d81266f7178668ed94a2bd115dea49338f
RTC: 245665
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/106145
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: Jenkins OP HW <0eb0fff262f74a65a832afbcc7b153e391c9a3fd@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Reviewed-by: Zachary Clark <9de8c4480303b5335cd2a33eefe814615ba3612a@ibm.com>
Reviewed-by: Ilya Smirnov <2c7a6ec38cfb553b896499595cca9c656159f2a4@us.ibm.com>
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Reviewed-by: Nicholas E Bofferding <fb8db48116bc8a69e29dd8cdb037246f232f4af5@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot