kvm: Pass CPUState to kvm_init_vcpu()

CPUArchState is no longer needed, and it thereby no longer depends on
NEED_CPU_H.

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/kvm-all.c b/kvm-all.c
index 4ba77de..6e2164b 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -214,9 +214,8 @@
     kvm_arch_reset_vcpu(cpu);
 }
 
-int kvm_init_vcpu(CPUArchState *env)
+int kvm_init_vcpu(CPUState *cpu)
 {
-    CPUState *cpu = ENV_GET_CPU(env);
     KVMState *s = kvm_state;
     long mmap_size;
     int ret;