simplify and cleanup initfile trace
simplify and cleanup initfile trace

Change-Id: I59d8b67d7e4dfe0a9fb6e0e8aa265aba13e899b3
RTC:	65312
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/3377
Reviewed-by: Brian H. Horton <4d3586b959590a6e034649b5cc7435fb7d9ba30c@linux.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

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