MIPS: Loongson-3: Move chipset ACPI code from drivers to arch

SB700/SB710/SB800 chipset ACPI code is mostly Loongson-3 specific
routines rather than a "platform driver".
Signed-off-by: NHuacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <sjhill@realitydiluted.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11273/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/loongson64/loongson-3/Makefile

 #
 # Makefile for Loongson-3 family machines
 #
-obj-y			+= irq.o cop2-ex.o platform.o
+obj-y			+= irq.o cop2-ex.o platform.o acpi_init.o
 
 obj-$(CONFIG_SMP)	+= smp.o
 

drivers/platform/mips/Kconfig

@@ -15,10 +15,6 @@ menuconfig MIPS_PLATFORM_DEVICES
 
 if MIPS_PLATFORM_DEVICES
 
-config MIPS_ACPI
-	bool
-	default y if LOONGSON_MACH3X
-
 config CPU_HWMON
 	tristate "Loongson CPU HWMon Driver"
 	depends on LOONGSON_MACH3X

drivers/platform/mips/Makefile

-obj-$(CONFIG_MIPS_ACPI) += acpi_init.o
 obj-$(CONFIG_CPU_HWMON) += cpu_hwmon.o