Update minimal size

For development/testing purposes we shouldn't use regular control plane VMs sizes
to save HW resources. For that we need to upgrade  "minimal" value of "openstack_cluster_size"
variable from cookiecutter templates and describe the sizes in reclass-system .
The sizes should be set according to "minimal." flavors from Architecturies document

Minimal size was created by https://gerrit.mcp.mirantis.com/#/c/18279/
for CI and not described in public documentd and no client affected.

Depends-On: https://gerrit.mcp.mirantis.com/#/c/34789/

Change-Id: I8d463080be43aad427d5f6941d721efd76ce156a
Prod-related: PROD-26630 (PROD:26630)
diff --git a/salt/control/sizes/ovs/minimal.yml b/salt/control/sizes/ovs/minimal.yml
index 0b822b4..37cef97 100644
--- a/salt/control/sizes/ovs/minimal.yml
+++ b/salt/control/sizes/ovs/minimal.yml
@@ -1,8 +1,8 @@
 parameters:
   _param:
-    salt_control_size_cpu_openstack_gateway: 4
-    salt_control_size_ram_openstack_gateway: 16384
-    salt_control_size_disk_profile_openstack_gateway: small
+    salt_control_size_cpu_openstack_gateway: 1
+    salt_control_size_ram_openstack_gateway: 2048
+    salt_control_size_disk_profile_openstack_gateway: minimal_xsmall
     salt_control_size_net_profile_openstack_gateway: default
   salt:
     control: