Add python-passlib to docker images. (#16376)

Related to #16361

test/utils/docker/centos6/Dockerfile

@@ -23,6 +23,7 @@ RUN yum clean all && \
     python-mock \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/centos7/Dockerfile

@@ -32,6 +32,7 @@ RUN yum clean all && \
     python-mock \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/fedora-rawhide/Dockerfile

@@ -35,6 +35,7 @@ RUN dnf clean all && \
     python-mock \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/fedora23/Dockerfile

@@ -34,6 +34,7 @@ RUN dnf clean all && \
     python-mock \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/opensuseleap/Dockerfile

@@ -26,6 +26,7 @@ RUN zypper --non-interactive --gpg-auto-import-keys refresh && \
     python-MySQL-python \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-PyYAML \
     python-setuptools \

test/utils/docker/ubuntu1204/Dockerfile

@@ -32,6 +32,7 @@ RUN apt-get update -y && \
     python-mysqldb \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/ubuntu1404/Dockerfile

@@ -31,6 +31,7 @@ RUN apt-get update -y && \
     python-mysqldb \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \

test/utils/docker/ubuntu1604/Dockerfile

@@ -34,6 +34,7 @@ RUN apt-get update -y && \
     python-mysqldb \
     python-nose \
     python-paramiko \
+    python-passlib \
     python-pip \
     python-setuptools \
     python-virtualenv \