Updated from global requirements

Change-Id: I89081053923a81260111dbfefd307b80e3858caf

Author: OpenStack Proposal Bot

requirements.txt

@@ -13,7 +13,7 @@ oslo.config>=3.2.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.utils>=3.4.0 # Apache-2.0
 python-glanceclient>=1.2.0 # Apache-2.0
-python-keystoneclient!=1.8.0,>=1.6.0 # Apache-2.0
+python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
 python-novaclient!=2.33.0,>=2.29.0 # Apache-2.0
 python-cinderclient>=1.3.1 # Apache-2.0
 requests!=2.9.0,>=2.8.1 # Apache-2.0