MIPS: Loongson-3: Add CPU Hwmon platform driver

This add CPU Hwmon (temperature sensor) platform driver for Loongson-3.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9617/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/include/asm/mach-loongson/loongson.h
Simple merge

diff --cc arch/mips/loongson/common/env.c
Simple merge

diff --cc drivers/platform/Kconfig
Simple merge

diff --cc drivers/platform/Makefile
Simple merge

diff --cc drivers/platform/mips/Kconfig
Simple merge

diff --cc drivers/platform/mips/Makefile
Simple merge

diff --cc drivers/platform/mips/cpu_hwmon.c
Simple merge