cli: Add server uuid into volume brick info xml

Add server uuid as an attribute to the existing brick details in the
volume info cli xml output.
Currently, when a node has more than one ip, the oVirt-engine fails
to map the corresponding server using the ip alone.
If we get the host uuid along with brick details in volume info
command it will be easy for ovirt-engine to find out the
server and thereby we can avoid confusion in finding the server.

Change-Id: I3c9c9acea80e10e0b2977477759d9af045e48959
BUG: 955588
Signed-off-by: Timothy Asir <tjeyasin@redhat.com>
Reviewed-on: http://review.gluster.org/4875
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>