Fix incompatible requirement in lower-constraints

Fix lower-constraints don't match the lower bounds
in the requirements file(s). It causes fail in
requirements-check.

REF:
http://lists.openstack.org/pipermail/openstack-dev/2018-April/129056.html

Change-Id: I5f26375a5e55da9449635dbfd0b0e8d0968f485e

lower-constraints.txt

@@ -22,8 +22,8 @@ eventlet==0.18.2
 extras==1.0.0
 fasteners==0.7.0
 fixtures==3.0.0
-flake8==2.5.5
 flake8-import-order==0.12
+flake8==2.5.5
 future==0.16.0
 futurist==1.2.0
 greenlet==0.4.10
@@ -51,8 +51,8 @@ msgpack-python==0.4.0
 munch==2.1.0
 netaddr==0.7.18
 netifaces==0.10.4
-neutron==12.0.0
 neutron-lib==1.13.0
+neutron==12.0.0
 openstackdocstheme==1.18.1
 openstacksdk==0.11.2
 os-client-config==1.28.0
@@ -61,7 +61,7 @@ os-testr==1.0.0
 os-xenapi==0.3.1
 osc-lib==1.8.0
 oslo.cache==1.26.0
-oslo.concurrency==3.25.0
+oslo.concurrency==3.26.0
 oslo.config==5.2.0
 oslo.context==2.19.2
 oslo.db==4.27.0
@@ -86,8 +86,8 @@ PasteDeploy==1.5.0
 pbr==2.0.0
 pecan==1.0.0
 pep8==1.5.7
-pika==0.10.0
 pika-pool==0.1.3
+pika==0.10.0
 positional==1.2.1
 prettytable==0.7.2
 psutil==3.2.2
@@ -114,8 +114,8 @@ pytz==2013.6
 PyYAML==3.12
 reno==2.5.0
 repoze.lru==0.7
+requests-mock==1.2.0
 requests==2.14.2
-requests-mock==1.1.0
 requestsexceptions==1.2.0
 restructuredtext-lint==1.1.1
 rfc3986==0.3.1
@@ -124,10 +124,10 @@ ryu==4.14
 simplejson==3.5.1
 six==1.10.0
 snowballstemmer==1.2.1
-Sphinx==1.6.5
+Sphinx==1.6.2
 sphinxcontrib-websupport==1.0.1
-SQLAlchemy==1.0.10
 sqlalchemy-migrate==0.11.0
+SQLAlchemy==1.0.10
 sqlparse==0.2.2
 statsd==3.2.1
 stestr==1.0.0