lrdp-v2: ramdump: Fix autoparse for some targets.

Add support for parsing dump_info.txt and load.cmm to properly set phys
offset and find the base addresses of memory files.

This change fixed autoparse on a few targets, though may not apply to all
platforms and situations.

Changes based heavily on those made from a prior change.
See Change-Id: I4be54a48a659ac1e6346d9178d19a8b40e2e1b6d

CRs-Fixed: 1038185
Change-Id: If98a4073e9afc98fd3903e606539b9e4e9ca2c51