mips: clean up kvm Makefile

You can use kvm-y instead of kvm-objs to create the composite module.
kvm-$(CONFIG_...) looks cleaner.

Signed-off-by: Masahiro Yamada <[e-mail]>
Signed-off-by: Thomas Bogendoerfer <[e-mail]>

arch/mips/kvm/Makefile

···
 # Makefile for KVM support for MIPS
 #
 
-common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o eventfd.o binary_stats.o)
-
 ccflags-y += -Ivirt/kvm -Iarch/mips/kvm
 
-common-objs-$(CONFIG_CPU_HAS_MSA) += msa.o
+kvm-y := $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o eventfd.o binary_stats.o)
+kvm-$(CONFIG_CPU_HAS_MSA) += msa.o
 
-kvm-objs := $(common-objs-y) mips.o emulate.o entry.o \
+kvm-y +=    mips.o emulate.o entry.o \
 	    interrupt.o stats.o \
 	    fpu.o
-kvm-objs += hypcall.o
-kvm-objs += mmu.o
-ifdef CONFIG_CPU_LOONGSON64
-kvm-objs += loongson_ipi.o
-endif
+kvm-y += hypcall.o
+kvm-y += mmu.o
+kvm-$(CONFIG_CPU_LOONGSON64) += loongson_ipi.o
 
-kvm-objs		+= vz.o
+kvm-y		+= vz.o
 obj-$(CONFIG_KVM)	+= kvm.o
 obj-y			+= callback.o tlb.o