Allow to set ssl grant options when creating galera databases

This patch allows to configure SSL grant options when creating
galera databases by specifying mysql_{service}_ssl_option param.

Change-Id: I6c7d82f62d20388033f608c1b4ca0269249807da
Related-Prod: PROD-17049
diff --git a/galera/server/database/nova.yml b/galera/server/database/nova.yml
index 86d4821..d2ffc4a 100644
--- a/galera/server/database/nova.yml
+++ b/galera/server/database/nova.yml
@@ -1,4 +1,6 @@
 parameters:
+  _param:
+    mysql_nova_ssl_option: []
   mysql:
     server:
       database:
@@ -9,10 +11,12 @@
             password: ${_param:mysql_nova_password}
             host: '%'
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}
           - name: nova
             password: ${_param:mysql_nova_password}
             host: ${_param:cluster_local_address}
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}
         nova_api:
           encoding: utf8
           users:
@@ -20,10 +24,12 @@
             password: ${_param:mysql_nova_password}
             host: '%'
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}
           - name: nova
             password: ${_param:mysql_nova_password}
             host: ${_param:cluster_local_address}
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}
         nova_cell0:
           encoding: utf8
           users:
@@ -31,7 +37,9 @@
             password: ${_param:mysql_nova_password}
             host: '%'
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}
           - name: nova
             password: ${_param:mysql_nova_password}
             host: ${_param:cluster_local_address}
             rights: all
+            ssl_option: ${_param:mysql_nova_ssl_option}