LIBS_FROM_GIT is a comma separated list
LIBS_FROM_GIT is a comma separated list

Even if it wasn't, the code setting it was just overwritting previous
values.

Change-Id: Ifef712b17be18722be0c20748f6a9618eb5cf2e0

openstack-infra/project-config,openstack-infra/project-config,Tesora/tesora-project-config,Tesora/tesora-project-config