Update actual count in MDRT after collecting dump
Update actual count in MDRT after collecting dump

We need to update the MDRT in mainstore so that DUMP code on the
FSP can read valid data during the IPL.  We know that it will
get whacked later in the IPL so we also have to write it later.

Change-Id: I74ca677969709b0084394785cb5cb0aca459b54d
CQ: SW235103
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/7585
Tested-by: Jenkins Server
Reviewed-by: Douglas R. Gilbert <54dff2264884c355ed5584a3b7f1530b4b26921e@us.ibm.com>
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

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