[PATCH] CAS DFP support

[Paul Mackerras]

Jake Moilanen writes:

> When booting a Power6 in compat mode, the DFP bit must be set in the
> client architecture call, or else firmware will downgrade the compliance
> to P5 compat mode, thus removing VMX and DFP instructions.

This change is already in the powerpc.git tree; it was part of my
"Distinguish POWER6 partition modes and tell userspace" patch.

Paul.