Prepare for LVM based VCP

This patch adds metadata needed to setup partitions on
VCP with LVM.

The new param 'image_layout' is added to salt:control:size:<size_name>
This is metadata that describes partition layout of VCP.

For now VCP has predefined list of partitions see
https://gerrit.mcp.mirantis.com/#/c/30862/

image_layout defines sizes for each of partitions that should be
applied after VCP is provisioned. The resizing will be done by
growlvmp.py script placed on VCP
https://gerrit.mcp.mirantis.com/#/c/31052/

The default layout:

  image_layout:
    root:
      size: '30%VG'     # 30% of VG total size
    home:
      size: '1G'        # fixed size 1G
    var_log:
      size: '11%VG'     # 11% of VG total size
    var_log_audit:
      size: '5G'        # fixed size 5G
    var_tmp:
      size: '11%VG'     # 11% of VG total size
    tmp:
      size: '5G'        # fixed size 5G

Related-Prod: PROD-24537

Change-Id: I18205dfa8478be2ae092a87ced833c8ab0cc01ea
diff --git a/salt/control/sizes/stacklight.yml b/salt/control/sizes/stacklight.yml
index c7b1875..acdc835 100644
--- a/salt/control/sizes/stacklight.yml
+++ b/salt/control/sizes/stacklight.yml
@@ -20,13 +20,16 @@
           ram: ${_param:salt_control_size_ram_stacklight_log}
           disk_profile: ${_param:salt_control_size_disk_profile_stacklight_log}
           net_profile: ${_param:salt_control_size_net_profile_stacklight_log}
+          image_layout: ${_param:salt_control_size_image_layout_stacklight_log}
         stacklight.server:
           cpu: ${_param:salt_control_size_cpu_stacklight_server}
           ram: ${_param:salt_control_size_ram_stacklight_server}
           disk_profile: ${_param:salt_control_size_disk_profile_stacklight_server}
           net_profile: ${_param:salt_control_size_net_profile_stacklight_server}
+          image_layout: ${_param:salt_control_size_image_layout_stacklight_server}
         stacklight.telemetry:
           cpu: ${_param:salt_control_size_cpu_stacklight_telemetry}
           ram: ${_param:salt_control_size_ram_stacklight_telemetry}
           disk_profile: ${_param:salt_control_size_disk_profile_stacklight_telemetry}
-          net_profile: ${_param:salt_control_size_net_profile_stacklight_telemetry}
\ No newline at end of file
+          net_profile: ${_param:salt_control_size_net_profile_stacklight_telemetry}
+          image_layout: ${_param:salt_control_size_image_layout_stacklight_telemetry}