HWPF: Fix automatic collection of CFAM register FFDC on HWP error
HWPF: Fix automatic collection of CFAM register FFDC on HWP error

HWP Error XML files can specify CFAM/SCOM registers to collect on a HWP error.
The current code doesn't work for CFAM addresses containing non decimal
characters, simple fix.

Change-Id: I713ed12a85e6fd994c8e4b271b7901b0a66cd484
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/2907
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,alvintpwang/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,alvintpwang/hostboot,csmart/hostboot,open-power/hostboot,alvintpwang/hostboot,csmart/hostboot,csmart/hostboot,csmart/hostboot,open-power/hostboot,alvintpwang/hostboot,open-power/hostboot,csmart/hostboot