Update git submodules

* Update docs/submodules/aaa from branch 'master'
  to 8a97f00d5b84d847a2631484393b3ded139089eb
  - Clean up odl-aaa-web

    This needs Guava, so use odl-guava-23.

    Change-Id: I666b0aff22329a6e77998c7e280146f71a2a734f
    Signed-off-by: Stephen Kitt <skitt@redhat.com>
  - Clean up odl-aaa-shiro

    Pull in odl-jolokia and odl-aaa-web to reduce the bundle overlap.

    Change-Id: I3bb2ba38a4a184cfe5780ca12faabc3d2a7abbf7
    Signed-off-by: Stephen Kitt <skitt@redhat.com>

diff --git a/docs/submodules/aaa b/docs/submodules/aaa
index d0d869008d7c7bb8d08a77051a660fb087134a6b..8a97f00d5b84d847a2631484393b3ded139089eb 160000 (submodule)
--- a/docs/submodules/aaa
+++ b/docs/submodules/aaa
@@ -1 +1 @@
-Subproject commit d0d869008d7c7bb8d08a77051a660fb087134a6b
+Subproject commit 8a97f00d5b84d847a2631484393b3ded139089eb