Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - remove .ansible directory

    It's needed to remove .ansible directory which could be a leftovers by
    some other ansible execution enviroment which would affect XCI
    deployment.

    Change-Id: Ic334ef1ca53878721762b23b238fe9a8aeefa0e0
    Signed-off-by: Periyasamy Palanisamy <periyasamy.palanisamy@ericsson.com>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 6a86fba..afc51e7 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 6a86fba9dac4c1f37d854335afb936d36967f084
+Subproject commit afc51e7945b2e1359653b48db4e5c26500ec582c