change to drivers.xml

no upper? added "upper limit" and a . at the end

Change-Id: I0934360b6a4090402134fa87e801237a03102310
Fix tox.ini for tox 1.7

tox 1.7 changed parsing of {posargs}, workaround the regression.

Change-Id: Icab04218b61a3cca7d965d6300b8a233f8e143fa
Merge "change to drivers.xml"