repo_utils: Call git set remote-url
repo_utils: Call git set remote-url

This will cause git repos on-disk to be updated to point at the correct
remote based on config.ceph_git_base_url

Signed-off-by: Zack Cerza <d7cdf09fc0f0426e98c9978ee42da5d61fa54986@redhat.com>

ktdreyer/teuthology,SUSE/teuthology,dmick/teuthology,ceph/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,dmick/teuthology,ktdreyer/teuthology,SUSE/teuthology