Rename Huawei Jenkins slaves

Rename Huawei Jenkins slaves

Slave names will be as below.

- huawei-us-deploy-bare-1 -> huawei-pod1
- huawei-us-deploy-bare-2 -> huawei-pod2
- huawei-sh-test-2-defaults -> huawei-pod3
- huawei-sh-pod6 -> huawei-pod4
- huawei-us-deploy-vm-1 -> huawei-virtual1
- huawei-us-deploy-vm-2 -> huawei-virtual2
- huawei-us-deploy-vm-3 -> huawei-virtual3
- huawei-us-deploy-vm-4 -> huawei-virtual4

huawei-sh-pod4 will be removed from Jenkins.

Please note that this change will result in removal of existing jobs.
This is not that crucial since the use of labels will result in same.

Change-Id: I63798c799a402b1694ee0767ffdb45a597897cd9
Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>