Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to 3602c18a581fd99b12fb8ef298d581bc39225b65
  - Architecture doc update complete

    Please check the bridging text added to address a comment by Pam in a
    previous review on the bridging between the concept of a policy type
    implementation and an application.

    Issue-ID: POLICY-2500
    Change-Id: I40bceef2c0fc0afb9f785fa302f26956b0a2a047
    Signed-off-by: liamfallon <liam.fallon@est.tech>

diff --git a/docs/submodules/policy/parent.git b/docs/submodules/policy/parent.git
index c9ff573..3602c18 160000 (submodule)
--- a/docs/submodules/policy/parent.git
+++ b/docs/submodules/policy/parent.git
@@ -1 +1 @@
-Subproject commit c9ff573b80ff08e1f3e4e6e020d8e060f47162c5
+Subproject commit 3602c18a581fd99b12fb8ef298d581bc39225b65