[elf64-hppa] Add grok_{prstatus,psinfo} methods

[Randolph Chung]

>> This adds the grok_prstatus/psinfo methods for the elf64-hppa target 
>> for Linux core dumps.
> 
> Before we can consider reviewing or accepting this patch you need to 
> have a copyright assignment in place with the FSF.  Please could you 
> fill out the attached form and send it off in order to start this 
> process rolling ?

I just got confirmation from FSF that the paperwork has finally been 
completed. So if this patch is still ok, please apply.

http://sourceware.org/ml/binutils/2005-12/msg00199.html

randolph