Corrected length of cvpd.dat
Corrected length of cvpd.dat

I discovered the length of cvpd.dat was one byte too short.
This causes problems when building up a PNOR CVPD partition
that contains multiple instances of cvpd.dat

Change-Id: I3f75975e76daf4e49b435a75e35183c07a36a882
RTC:44009
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/3211
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>
Reviewed-by: Daniel M. Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>
Tested-by: Jenkins Server

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