Replace test.attr with decorators.attr

Function 'tempest.test.attr()' has moved to 'tempest.lib.decorators
.attr()' in Pike and will be removed in a future version.
This patch replaces the 'tempest.test.attr()' with the 'tempest.lib
.decorators.attr().'

Change-Id: I672fbce15ea9b70d977eb0073426c394a1318b86
2 files changed
tree: 5807627d7586b99a97d9981c6fc1abee961682fb
  1. manila_tempest_tests/