cpu-exec: Change cpu_resume_from_signal() argument to CPUState

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-xtensa/helper.c b/target-xtensa/helper.c
index 8a9cb0a..94dcd94 100644
--- a/target-xtensa/helper.c
+++ b/target-xtensa/helper.c
@@ -92,7 +92,7 @@
             if (cause) {
                 debug_exception_env(env, cause);
             }
-            cpu_resume_from_signal(env, NULL);
+            cpu_resume_from_signal(cs, NULL);
         }
     }
 }