Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: scripts: start-new-vm.sh: Remove empty line

    The empty line is wrong and it may cause some issues so drop it.

    Change-Id: I4120e00df1dd9b7061dc1175e0ea6db8e0a9df88
    Signed-off-by: Markos Chandras <mchandras@suse.de>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index 52fea9e..182e3b0 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit 52fea9ecfc8cf0e81185b3f53f3d9d4d2ab98c9c
+Subproject commit 182e3b080b6e0f9cf7c1c9df31d22baef5f12456