Update git submodules

Update git submodules

* Update docs/submodules/clover from branch 'stable/gambia'
  - Merge "Add ability to read controller nodeport IP from file" into stable/gambia
  - Add ability to read controller nodeport IP from file

    - Formalize use of cloverctl config file using viper
    - Default name of config file is '.cloverctl.yaml'
    - Look for file in home directory or relative to
    cloverctl executable
    - Single value in config is for 'ControllerIP: <IP Address>'
    - Still try and retrieve port value of clover-controller nodeport
    automatically
    - Still try and retrieve IP address of clover-controller LB if
    GKE environment is being used and override config file value if found
    in current kube context

    - Improve error messaging if controller connect fails
    - Clean up the CLI help output
    - Modify jmeter 'get testresult' command to avoid the use
    of flags and use arguments instead

    Change-Id: Id95d1b3d1079ac84996681db62da1f9b6b8a88b5
    Signed-off-by: earrage <eddie.arrage@huawei.com>