Update git submodules

* Update docs/submodules/clamp.git from branch 'master'
  to 5456d52c14612e65ca759f478bc62acc0ef093e3
  - Improve security section of release notes

    In order to provide users with more details on project's state in
    terms of security let's divide the security release notes into three
    sections:

    - Fixed Security Issues
      Contains a list of security fixes merged during this
      release (especially those reported via OJSI tickets).

    - Known Security Issues
      Contains a list of vulnerabilities detected in project during
      release which have not been fixed yet and thus should be mitigated
      by the user.

    - Known Vulnerabilities in Used Modules
      Contains information about NexusIQ scan results

    Issue-ID: SECCOM-238
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I856d45e2adbcfcfca05b95d1482487aca950f794

diff --git a/docs/submodules/clamp.git b/docs/submodules/clamp.git
index 943d7b2..5456d52 160000 (submodule)
--- a/docs/submodules/clamp.git
+++ b/docs/submodules/clamp.git
@@ -1 +1 @@
-Subproject commit 943d7b2c32d7527cd018cd27f97f1b12a21b8989
+Subproject commit 5456d52c14612e65ca759f478bc62acc0ef093e3