Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Fix README for setting dev path instructions"
  - xci: Fix README for setting dev path instructions

    Change-Id: I56c727c242b6826f87a64246b6b4736a637c1abe
    Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 469ea32..e858613 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 469ea32285a0a6ac86b8e2b5f5054695de09bdf1
+Subproject commit e858613f52f1d8b9bea04870921395d36055bfe6