[patch 0/2] add Altivec/VMX state to coredumps

[markn at au1.ibm.com]

-- 
Here's the new and improved patch to add Altivec/VMX state into the coredump.

It's now two patches:
* the first patch makes the note type of the state dumped by
  elf_core_copy_task_xfpregs() a #define and adds the appropriate #defines so
  that archs that support SSE still have their note type as NT_PRXFPREG
* the second patch actually adds the Altivec/VMX state to the coredumps and
  uses a note type of NT_PPC_VMX that's #defined as 0x100. Thus SPE could use
  a note type of NT_PPC_SPE and 0x101, for example.

The second patch is essentially the same as the single patch that was posted on
2007-09-25, but with the addition of the new NT_PPC_VMX note type.