Updated git submodules

Updated git submodules

Project: multicloud/k8s master 6bbfadbdfe670334ad7755f3578d668d66dd9756

Merge "Bump kubernetes client to 1.12.3"

Bump kubernetes client to 1.12.3

Bumping up the kubernetes client library used
to kubernetes 1.12.3
We will move it to v10.0.0 once our k8s deployment
moves to 1.13.0
Bumping kubectl version to 1.12.2 as andrewrothstein/ansible-kubectl
does not have 1.12.3 in its main.yml

Issue-ID: MULTICLOUD-301
Change-Id: Ifb2eaecb794bfdec19d631fdc9ece051d5ebfc60
Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>