Add ISA_NANOMIPS32 and CPU_NANOMIPS32 preprocessor constants.
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NYongbok Kim <yongbok.kim@mips.com>
Signed-off-by: NAleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: NStefan Markovic <smarkovic@wavecomp.com>