Fix datastore name change of deployed cluster1 in VCenter

[timdengyun]

In the beginging, the deployed cluster1 datastore naming convention is fixed as:

{'concourse_dc1': {'cluster': {'cluster1': 'domain-c9'},

#                   'datastore': {'datastore': 'datastore-13',
#                                 'datastore (1)': 'datastore-17',
#                                 'vsanDatastore': 'datastore-49' }}}

However, the datastore naming is changed with dynamic naming format that is changed according to ESXi host ip name like:

{'concourse_dc1': {'cluster': {'cluster1': 'domain-c27'},

#                   'datastore': {'datastore-10.221.121.47': 'datastore-32',
#                                 'datastore-10.221.121.48': 'datastore-36',
#                                 'vsanDatastore': 'datastore-49'},}}

This patch is to support deployed cluster1 datastore naming convention change to rebuild datastore name in mapping from dynamic datastore name input and output a fixed datastore name mapping, one for nsx_datastore and one for edge_datastore.

Signed-off-by: Yun Dengdengyu@vmware.com