Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to e52152697bcf2a2aa5168702bb3d78b0bdd2ef25
  - Merge "Remove Bootstrapped PM DMaaP objects from MR & DR."
  - Remove Bootstrapped PM DMaaP objects from MR & DR.

    - Remove bootstrapped PM_MAPPER topic
    - Remove bootstrapped bulk_pm_feed

    Issue-ID: DCAEGEN2-1517
    Change-Id: I1ddb83bc587f8392f22633cd637c9ac735b5042c
    Signed-off-by: JoeOLeary <joseph.o.leary@est.tech>

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 5d3228a..e521526 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 5d3228aaf8b0800e0e5ec40cc41852f0a6cf75ac
+Subproject commit e52152697bcf2a2aa5168702bb3d78b0bdd2ef25