kvm: Pass CPUState to kvm_on_sigbus_vcpu()

Since commit 20d695a9254c1b086a456d3b79a3c311236643ba (kvm: Pass
CPUState to kvm_arch_*) CPUArchState is no longer needed.

Allows to change qemu_kvm_eat_signals() argument as well.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
diff --git a/kvm-stub.c b/kvm-stub.c
index 47f8dca..760aadc 100644
--- a/kvm-stub.c
+++ b/kvm-stub.c
@@ -112,7 +112,7 @@
     return -ENOSYS;
 }
 
-int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr)
+int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
 {
     return 1;
 }