[PATCHv2, MIPS] Add support for O32 FPXX and program header based ABI information

[Maciej W. Rozycki]

On Tue, 3 Jun 2014, Matthew Fortune wrote:

> For MIPS3D I'm not sure there are any production implementations. However,
> given there is generic support for up to 64 HWCAP bits then assigning one
> to each of the pre-existing ASEs won't steal too many of those bits.

 For the record the Broadcom SiByte SB-1 processor is a production 
implementation of the MIPS-3D ASE.

  Maciej