Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 8e28f7b7d9f32e3c472a717a8a8c7874e5724f8b
  - Merge "[SDNC] Use global storage templates for PVC"
  - [SDNC] Use global storage templates for PVC

    OOM has now templates in order to create the needed PVC, using:

    * a PV with a specific class when using a common nfs mount path between
    nodes (sames as today use) --> is the default behavior today
    * or a storage class if we want to use dynamic PV.
      On this case, we use (in order of priority):
      - persistence.storageClassOverride if set on the chart
      - global.persistence.storageClass if set globally
      - persistence.storageClass if set on the chart

    I've also used "range" for PV creation of the statefulset

    I've created one file per PV (one for mdsal, one for certs).

    sdnc-prom was using hostpath directly on deployment, move to a PV/PVC.

    Change-Id: Id9eed3b13ac85595c386e380f41cfbc38b52c69f
    Issue-ID: OOM-1227
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 1dd281f..8e28f7b 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 1dd281fc7e5d96d585561dd9bdbb90173a698a6a
+Subproject commit 8e28f7b7d9f32e3c472a717a8a8c7874e5724f8b