andyzhangx: Automated cherry pick of #100731: Normalize share name to not include capital letters

JobBuild
101550
04-28 02:26
5f401314
04-28 02:25
pull-kubernetes-bazel-build 1390613136582643712 1387231486695968768
pull-kubernetes-bazel-test 1390655864049766400 1390613136599420928 1387231486721134592
pull-kubernetes-dependencies 1390613136616198144 1387231486742106112
pull-kubernetes-e2e-aks-engine-azure-disk-vmas 1387231489971720192
pull-kubernetes-e2e-aks-engine-azure-disk-vmss 1387231490802192384
pull-kubernetes-e2e-aks-engine-azure-disk-windows-dockershim 1387231487450943488
pull-kubernetes-e2e-aks-engine-azure-file 1387231491649441792
pull-kubernetes-e2e-aks-engine-azure-file-windows-dockershim 1387231488298192896
pull-kubernetes-e2e-aks-engine-conformance 1387231489128665088
pull-kubernetes-e2e-aks-engine-windows-containerd 1390655864074932224 1390561222440521728 1390484572898070528
pull-kubernetes-e2e-gce-100-performance 1390613136565866496 1387231486679191552
pull-kubernetes-e2e-gce-ubuntu-containerd 1390613136519729152 1387231486628859904
pull-kubernetes-e2e-kind 1390602998090043392 1390561222406967296 1390484572877099008 1387231486796632064
pull-kubernetes-integration 1390613136637169664 1390484572847738880 1387231486775660544
pull-kubernetes-node-e2e 1390613136540700672 1387231486649831424
pull-kubernetes-typecheck 1390613136653946880 1387231486817603584
pull-kubernetes-verify 1390613136674918400 1387231486834380800