Update git submodules
* Update docs/submodules/clover from branch 'master'
- Merge "Adding clearwater IMS yaml and clearwater live test dockerfile to test istio service-mesh"
- Adding clearwater IMS yaml and clearwater live test dockerfile to test istio service-mesh
Checking into CLEARWATER_ISTIO branch
This part of the project is intended to validate the clearwater IMS with istio service-mesh.
Change-Id: Ia5ba86301a363fcf9cfe0bac525606b0d897713e
Signed-off-by: Muhammad Shaikh (Salman) <muhammad.shaikh@huawei.com>