Fix the LIBS_FROM_GIT entry for shade
Fix the LIBS_FROM_GIT entry for shade

We need to drop the prefix for the repo name when using LIBS_FROM_GIT
because this name is used to grep in a pip freeze to check if the lib
actually installed from git (safety check in devstack).

Change-Id: If1b963dda6bcc84bd10429efcfb3c24e4987e4fa

Tesora/tesora-project-config,dongwenjuan/project-config,Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config,dongwenjuan/project-config,noorul/os-project-config,noorul/os-project-config