Update git submodules

* Update docs/submodules/clamp.git from branch 'master'
  to 026042b446043e8f1cd16b11017f5732a3a16db7
  - Merge "Automation adds release-notes.rst"
  - Automation adds release-notes.rst

    Add _release_notes hook to allow automation.
    Fix non valid release notes characters in content.

    Issue-ID: CIMAN-376
    Change-Id: I875543052b460085fb173773b6b353b661e1272e
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>

diff --git a/docs/submodules/clamp.git b/docs/submodules/clamp.git
index d1b4f26..026042b 160000 (submodule)
--- a/docs/submodules/clamp.git
+++ b/docs/submodules/clamp.git
@@ -1 +1 @@
-Subproject commit d1b4f26e6b20f47801494651f0d48c55c16b2e5d
+Subproject commit 026042b446043e8f1cd16b11017f5732a3a16db7