Add mcp/ussuri support

Related-Issue: PRODX-5048
Change-Id: I8c3caa5bfbda06d901f38b27ca6b47982e22f180
diff --git a/pre-build.sh b/pre-build.sh
index e694430..a67383a 100644
--- a/pre-build.sh
+++ b/pre-build.sh
@@ -11,7 +11,6 @@
 REQUIREMENTS_REPO="${GERRIT_SCHEME}://${GERRIT_NAME}@${GERRIT_HOST_PORT}/packaging/sources/requirements"
 
 git clone ${HORIZON_LIB_REPO}
-cd horizon/ ; git checkout origin/mcp/train
+cd horizon/ ; git checkout origin/mcp/ussuri
 git clone ${REQUIREMENTS_REPO}
-cd requirements/ ; git checkout origin/mcp/train
-
+cd requirements/ ; git checkout origin/mcp/ussuri