bisect-kit: Add debug to quick-provision cmd

This would help future debugging so debug logs are outputed into bisect
logs.

BUG=none
TEST=# quick-provision w/ bisect-kit

Change-Id: Idc699fcb52f2f0771b945f0aa6d3be3846e8b35d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/bisect-kit/+/2818822
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Auto-Submit: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Kuang-che Wu <kcwu@chromium.org>
Commit-Queue: Kuang-che Wu <kcwu@chromium.org>
diff --git a/bisect_kit/cros_util.py b/bisect_kit/cros_util.py
index 8d579ad..d490c22 100644
--- a/bisect_kit/cros_util.py
+++ b/bisect_kit/cros_util.py
@@ -987,7 +987,7 @@
   quick_provision_cmd = [
       'test_that', '--args',
       "value='%s'" % build, host, 'provision_QuickProvision', '--autotest_dir',
-      autotest_path
+      autotest_path, '--debug'
   ]
   try:
     cros_sdk(chromeos_root, *quick_provision_cmd)