Add REPOSITORY_SUITE environment variable

We now use internal repositories like nightly, testing and stable.
REPOSITORY_SUITE variable allows to switch between these repos.

Default value:
export REPOSITORY_SUITE=stable

Added to the clusters:

- virtual-mcp-ocata-dvr
- virtual-mcp-ocata-ovs
- virtual-mcp11-dvr
- virtual-mcp11-ovs
- virtual-mcp11-dpdk

Also, ENV_NAME is not required now. By default, it will be created
from LAB_CONFIG_NAME + "_" + REPOSITORY_SUITE + "_" + BUILD_NUMBER
(BUILD_NUMBER added to separate different builds on Jenkins)
diff --git a/tcp_tests/templates/underlay/virtual-mcp-ocata-ovs.yaml b/tcp_tests/templates/underlay/virtual-mcp-ocata-ovs.yaml
index 7967ad9..d4dd39e 100644
--- a/tcp_tests/templates/underlay/virtual-mcp-ocata-ovs.yaml
+++ b/tcp_tests/templates/underlay/virtual-mcp-ocata-ovs.yaml
@@ -1,6 +1,9 @@
-{% import 'underlay/virtual-mcp-ocata-ovs--meta-data.yaml' as CLOUDINIT_META_DATA %}
-{% import 'underlay/virtual-mcp-ocata-ovs--user-data-cfg01.yaml' as CLOUDINIT_USER_DATA_CFG01 %}
-{% import 'underlay/virtual-mcp-ocata-ovs--user-data1604.yaml' as CLOUDINIT_USER_DATA_1604 %}
+# Set the repository suite, one of the: 'nightly', 'testing', 'stable', or any other required
+{% set REPOSITORY_SUITE = os_env('REPOSITORY_SUITE', 'stable') %}
+
+{% import 'underlay/virtual-mcp-ocata-ovs--meta-data.yaml' as CLOUDINIT_META_DATA with context %}
+{% import 'underlay/virtual-mcp-ocata-ovs--user-data-cfg01.yaml' as CLOUDINIT_USER_DATA_CFG01 with context %}
+{% import 'underlay/virtual-mcp-ocata-ovs--user-data1604.yaml' as CLOUDINIT_USER_DATA_1604 with context %}
 
 ---
 aliases:
@@ -21,7 +24,7 @@
 
 template:
   devops_settings:
-    env_name: {{ os_env('ENV_NAME', 'virtual-mcp-ocata-ovs') }}
+    env_name: {{ os_env('ENV_NAME', 'virtual-mcp-ocata-ovs_' + REPOSITORY_SUITE + "_" + os_env('BUILD_NUMBER', '')) }}
 
     address_pools:
       private-pool01: