Use envlist for tox based roles

Ensure we pass the envlist variable to our roles.

Change-Id: I1340b5db310e401bcac321ee12138bd5777d2324
Depends-On: Icd8ed9f769c1b2ce7fcb9c3a75296f0279a24d9f
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

playbooks/tox/cover.yaml

@@ -2,4 +2,5 @@
   roles:
     - extra-test-setup
     - revoke-sudo
-    - run-cover
+    - role: run-cover
+      envlist: cover

playbooks/tox/docs.yaml

@@ -1,4 +1,5 @@
 - hosts: all
   roles:
     - revoke-sudo
-    - run-docs
+    - role: run-docs
+      envlist: venv

playbooks/tox/linters.yaml

@@ -1,6 +1,5 @@
 - hosts: all
-  vars:
-    run_tox_envlist: pep8
   roles:
     - revoke-sudo
-    - run-tox
+    - role: run-tox
+      envlist: pep8

playbooks/tox/py27.yaml

@@ -1,7 +1,6 @@
 - hosts: all
-  vars:
-    run_tox_envlist: py27
   roles:
     - extra-test-setup
     - revoke-sudo
-    - run-tox
+    - role: run-tox
+      envlist: py27

playbooks/tox/py35.yaml

@@ -1,7 +1,6 @@
 - hosts: all
-  vars:
-    run_tox_envlist: py35
   roles:
     - extra-test-setup
     - revoke-sudo
-    - run-tox
+    - role: run-tox
+      envlist: py35

playbooks/tox/tarball.yaml

@@ -1,5 +1,7 @@
 - hosts: all
   roles:
     - revoke-sudo
-    - run-tarball
-    - run-wheel
+    - role: run-tarball
+      envlist: venv
+    - role: run-wheel
+      envlist: venv