Deploy SSH Key to fabric switches

Change-Id: Iccf24cb48b1d7ed5c62873008876937ce7739ccf
(cherry picked from commit 90c422a1e361d94c753eb20df990dbc8b9f663bc)
diff --git a/roles/fabric-switch/vars/main.yml b/roles/fabric-switch/vars/main.yml
new file mode 100644
index 0000000..6d1a0cd
--- /dev/null
+++ b/roles/fabric-switch/vars/main.yml
@@ -0,0 +1 @@
+pub_ssh_key: "{{ lookup('file', 'files/id_rsa.pub') }}"