Change all non-slow scenario tests to smoke

Smoke test should be able to check the integrity of the OpenStack cloud
environment easily. And the scenario tests should cover the popular use
cases.
So I think scenario tests should also be executed as smoke tests.
This commit changes all non-slow scenario tests to smoke.

Change-Id: Ia08c7dcec20501a5086e2078439076eeac234cff
diff --git a/tox.ini b/tox.ini
index d93112c..a3c781b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -81,7 +81,7 @@
 # https://bugs.launchpad.net/tempest/+bug/1216076 so the neutron smoke
 # job would fail if we moved it to parallel.
 commands =
-   sh tools/pretty_tox_serial.sh 'smoke {posargs}'
+   sh tools/pretty_tox_serial.sh '(?!.*\[.*\bslow\b.*\])((smoke)|(^tempest\.scenario)) {posargs}'
 
 [testenv:coverage]
 sitepackages = True