MIPS: Octeon: Mark octeon_model_get_string() with __init

Mark octeon_model_get_string() with __init and make internal functions
static.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7668/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/cavium-octeon/executive/octeon-model.c
Simple merge

diff --cc arch/mips/include/asm/octeon/cvmx.h
Simple merge

diff --cc arch/mips/include/asm/octeon/octeon-model.h
Simple merge