Update git submodules

* Update docs/submodules/auto from branch 'stable/fraser'
  - cosmetic change to R6.2 Release Notes

    JIRA: AUTO-41

    forgot blank line before list of notable activities
    (line 277); opnfvdocs rendition did not look good;

    Change-Id: Ic5073e5021164c27fdcccab4b11fd8f375bfeeaf
    Signed-off-by: Gerard Damm <gerard.damm@wipro.com>
    (cherry picked from commit f2b7433b3f20299d935c42e978d56703b11eb17b)

diff --git a/docs/submodules/auto b/docs/submodules/auto
index b861638..d8634fc 160000 (submodule)
--- a/docs/submodules/auto
+++ b/docs/submodules/auto
@@ -1 +1 @@
-Subproject commit b861638ed6e9a4dbd7e1b2d18907b709d1491c5b
+Subproject commit d8634fc5ceef5e87484186c7305637f260ccb28f