MIPS: Octeon: Update feature test functions for new chips and features.

cvmx.h was rearranged to fix include file ordering problems, but there
is no change other than moving some definitions around.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2984/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>