CA-108876: XenCert unable to identify the multipath configuration

This issue is for a particular storage device due to addition of regular
expressions since Tampa.

    Signed-off-by: Sugandha Aggarwal <sugandha.aggarwal@citrix.com>
    Reviewed-by: Robert Breker <robert.breker@citrix.com>

    GitHub: closes #11 on xenserver/xencert