Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to e62f711b12a3d2340172e8b6d608989197bf4dc9
  - Updated Architecture Chapter 1

    Updated TOSCA policy primer to include image.

    Updated Architecture doc to fix links.
    Updated chapter 1 of architecture doc.
    Fixed hierarchy problem with chapter levels in architecture doc.

    Issue-ID: POLICY-1676
    Change-Id: I25868082465508d214b4bf1559e5aa8ce84fb069
    Signed-off-by: liamfallon <liam.fallon@est.tech>

diff --git a/docs/submodules/policy/parent.git b/docs/submodules/policy/parent.git
index af35b6a..e62f711 160000 (submodule)
--- a/docs/submodules/policy/parent.git
+++ b/docs/submodules/policy/parent.git
@@ -1 +1 @@
-Subproject commit af35b6a245e1587a3f149746c043fc4520daecaa
+Subproject commit e62f711b12a3d2340172e8b6d608989197bf4dc9