kvm: Change kvm_set_signal_mask() argument to CPUState

CPUArchState is no longer needed.

Prepares for changing qemu_kvm_init_cpu_signals() argument to CPUState.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/kvm-stub.c b/kvm-stub.c
index 128faf7..50af700 100644
--- a/kvm-stub.c
+++ b/kvm-stub.c
@@ -100,7 +100,7 @@
 }
 
 #ifndef _WIN32
-int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset)
+int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
 {
     abort();
 }