exec: Change cpu_abort() argument to CPUState

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index acf6909..91b7ae5 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -2100,7 +2100,7 @@
         }
     }
 
-    cpu_abort(env, "Unknown TLBe: %d\n", id);
+    cpu_abort(CPU(ppc_env_get_cpu(env)), "Unknown TLBe: %d\n", id);
     return 0;
 }