linux-ramdump-parser-v2: Parse re-sized logbuffer

The logbuf for kernel dmesg logs may be re-sized at bootup to
be non-static. Account for this by parsing the non-static version
which should should also point to the static version.

Change-Id: Id5a2da0036b31ac0b5f4622a5e1cd74e38e8dae4