When calculating pfn_to_page, the pfn needs to be offset before
indexing into the array. Account for this.

Change-Id: If207447a91537ab7670058fede65473d3ea93281

Older targets use a slightly different version of map around the hole
which has different variable names. Account for this in the code.

Change-Id: Ia657b265dc6f34c9fb33f71c1ef62dbf0c0c2114

After a crash, ramdumps may be collected for analysis. The ram
parser is a tool to aid in analysis of these dumps. The script
extracts useful information from the dumps to help with debugging.
Please see the README for full details.

Change-Id: I7795686a96bbfe246edf47d09e3f616131688429