Reset of RDMA drivers not taking effect

[brendandixon]

1. Spin up a CentOS 7.1 HPC with NC6 size.
2. Perform WALA upgrade steps. (Execute following commands on VM.)
   Following commands will add a test repository where we have LIS4.1.3 drivers available.
   echo "[rdma-test]" > /etc/yum.repos.d/rdma-test.repo
   echo "name=RDMA Test" >> /etc/yum.repos.d/rdma-test.repo
   echo 'baseurl=http://szark-cnt6.cloudapp.net/repo/$releasever/' >> /etc/yum.repos.d/rdma-test.repo
   echo "enabled=1" >> /etc/yum.repos.d/rdma-test.repo
   echo "gpgcheck=0" >> /etc/yum.repos.d/rdma-test.repo
   yum install WALinuxAgent
3. Resize VM to NC24r

Expected Result:
After the resize is complete, WALA should kick off RDMA provision code after receiving "SharedConfig.xml" over wire and should successfully replace existing ND142 drivers with ND144 drivers.

Actual Result:
WALA2.2.6 kicks of RDMA provision code before receiving "SharedConfig.xml" over wire which results - failure in installation ND144 driver.

[brendandixon]

Fixed by #729.