qemu.tests.stop_continue call session.cmd() with ignore_all_errors=True.

We do not want to fail the case for exception in clean up command.
Signed-off-by: NFeng Yang <fyang@redhat.com>

qemu/tests/stop_continue.py

@@ -86,4 +86,4 @@ def run_stop_continue(test, params, env):
         if clean_op:
             error.context("Do clean operation: '%s'" % clean_op, logging.info)
             op_timeout = float(params.get("clean_op_timeout", 60))
-            session.cmd(clean_op, timeout=op_timeout)
+            session.cmd(clean_op, timeout=op_timeout, ignore_all_errors=True)