Need Ceph NVMeMon map response to be Json compatible

[sunilkumarn417]

Need JSON reponse for the NVMeMON map command response, it might help us in easy way of parsing data.

 {
    "pool": "rbd",
    "group": "",
    "num gws": 2,
    "Anagrp list": "[ 2 1 ]"
}
{
    "gw-id": "client.nvmeof.rbd.ceph-sunilkumar-00-7v6gmf-node6.ltohgy",
    "anagrp-id": 2,
    "last-gw_map-epoch-valid": 1,
    "Availability": "AVAILABLE",
    "ana states": " 2: OWNER_FAILBACK_PREPARED , 1: STANDBY ,"
}
{
    "gw-id": "client.nvmeof.rbd.ceph-sunilkumar-00-7v6gmf-node7.qraoia",
    "anagrp-id": 1,
    "last-gw_map-epoch-valid": 1,
    "Availability": "AVAILABLE",
    "ana states": " 2: WAIT_FAILBACK_PREPARED , 1: ACTIVE ,"
}

Validate Json fails

>>> import json
>>> data = """{
...     "pool": "rbd",
...     "group": "",
...     "num gws": 2,
...     "Anagrp list": "[ 2 1 ]"
... }
... {
...     "gw-id": "client.nvmeof.rbd.ceph-sunilkumar-00-7v6gmf-node6.ltohgy",
...     "anagrp-id": 2,
...     "last-gw_map-epoch-valid": 1,
...     "Availability": "AVAILABLE",
...     "ana states": " 2: OWNER_FAILBACK_PREPARED , 1: STANDBY ,"
... }
... {
...     "gw-id": "client.nvmeof.rbd.ceph-sunilkumar-00-7v6gmf-node7.qraoia",
...     "anagrp-id": 1,
...     "last-gw_map-epoch-valid": 1,
...     "Availability": "AVAILABLE",
...     "ana states": " 2: WAIT_FAILBACK_PREPARED , 1: ACTIVE ,"
... }"""
>>>
>>> json.loads(data)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.9/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/lib64/python3.9/json/decoder.py", line 340, in decode
    raise JSONDecodeError("Extra data", s, end)
json.decoder.JSONDecodeError: Extra data: line 7 column 1 (char 87)