Merge the frr and ovn-bgp-agent roles into one

There is no need to split the roles in install, configure and
run. This task is about unifying them so that we just have a
frr role and an ovn-bgp-agent role.

To avoid breaking other repositories that still use the split
roles, we will decompose the merging of the roles in two steps.
This patch represents the first step, creating the future role
that will replace the other three (install, configure, run).

A future patch, once it is confirmed that the dependent
repositories are already using the unified role, will eliminate
the split roles.

playbooks/frr.yml

@@ -0,0 +1,12 @@
+---
+
+- name: Deploy EDPM FRR
+  hosts: all
+  strategy: linear
+  become: true
+  tasks:
+    - name: EDPM FRR
+      ansible.builtin.import_role:
+        name: osp.edpm.edpm_frr
+      tags:
+        - edpm_frr

playbooks/ovn_bgp_agent.yml

@@ -0,0 +1,12 @@
+---
+
+- name: Deploy EDPM OVN BGP Agent
+  hosts: all
+  strategy: linear
+  become: true
+  tasks:
+    - name: EDPM OVN BGP Agent
+      ansible.builtin.import_role:
+        name: osp.edpm.edpm_ovn_bgp_agent
+      tags:
+        - edpm_ovn_bgp_agent