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>

arch/mips/include/asm/octeon/cvmx.h

@@ -451,6 +451,4 @@ static inline uint32_t cvmx_octeon_num_cores(void)
 	return cvmx_pop(ciu_fuse);
 }
 
-uint8_t cvmx_fuse_read_byte(int byte_addr);
-
 #endif /*  __CVMX_H__  */