Enable H302 check (api/compute/{c*,f*,i*,s*,t*})

We can use H302 rule but ignore it now. This commit prepares for
enabling H302 rule. But this commit modifies a part of Tempest only
because if we fix all of them at one time, it's hard to merge this
commit.
    ---------------
    tempest/api/compute/admin
    tempest/api/compute/{c*,f*,i*,s*,t*}     <- This patch
    tempest/api/compute/{v3,volumes},data_processing
    tempest/api/identity/admin
    tempest/api/image
    tempest/api/{n*,o*,t*}
    tempest/api/volume,tempest/*
    tempest/services/compute/json
    tempest/services/compute/v3/json
    tempest/services/compute/xml
    tempest/services/identity
    tempest/services/{im*,n*,o*,t*}
    tempest/services/volume
    tempest/clients.py: TBD
    ---------------

Change-Id: I9d4041754df0e9f20937300b1e19c8ae63d4090a
diff --git a/tempest/api/compute/test_quotas.py b/tempest/api/compute/test_quotas.py
index 112e4fb..1695b19 100644
--- a/tempest/api/compute/test_quotas.py
+++ b/tempest/api/compute/test_quotas.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.test import attr
+from tempest import test
 
 
 class QuotasTestJSON(base.BaseV2ComputeTest):
@@ -36,7 +36,7 @@
                                      'instances', 'security_group_rules',
                                      'cores', 'security_groups'))
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_get_quotas(self):
         # User can get the quota set for it's tenant
         expected_quota_set = self.default_quota_set | set(['id'])
@@ -46,7 +46,7 @@
                          sorted(quota_set.keys()))
         self.assertEqual(quota_set['id'], self.tenant_id)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_get_default_quotas(self):
         # User can get the default quota set for it's tenant
         expected_quota_set = self.default_quota_set | set(['id'])
@@ -56,7 +56,7 @@
                          sorted(quota_set.keys()))
         self.assertEqual(quota_set['id'], self.tenant_id)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_compare_tenant_quotas_with_default_quotas(self):
         # Tenants are created with the default quota values
         resp, defualt_quota_set = \