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 --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index 3656b7b..ca26925 100644
--- a/drivers/platform/Makefile
+++ b/drivers/platform/Makefile
@@ -3,6 +3,7 @@
 #
 
 obj-$(CONFIG_X86)		+= x86/
+obj-$(CONFIG_MIPS)		+= mips/
 obj-$(CONFIG_OLPC)		+= olpc/
 obj-$(CONFIG_GOLDFISH)		+= goldfish/
 obj-$(CONFIG_CHROME_PLATFORMS)	+= chrome/