Add new roles for kubernetes

Add the following roles:
- kubernetes_compute
- kubernetes_compute_contrail
- kubernetes_control_contrail

Keepalived interface for kubernetes_control changed
from ens3 to ens4

Add role 'salt_master_host' , to define salt master host
for the nodes which don't have definitions in the
system.reclass.storage.*

Change-Id: I6f64fba28e06f4c354dd10d8f1d9a7ea32e3a01f
diff --git "a/\173\043 roles \043\175/salt_master_host" "b/\173\043 roles \043\175/salt_master_host"
new file mode 100644
index 0000000..362190d
--- /dev/null
+++ "b/\173\043 roles \043\175/salt_master_host"
@@ -0,0 +1 @@
+{{- set_param('salt_master_host', '${_param:reclass_config_master}') }}
\ No newline at end of file