MIPS: Octeon: Rearrange CVMX files in preperation for device tree

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Patchwork: https://patchwork.linux-mips.org/patch/2941/


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