Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Enable functest healthcheck"
  - xci: Enable functest healthcheck

    Change-Id: I261bfafefcd1fb5dcfead20697759e46d3556b46
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 6486bfb..c58bb46 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 6486bfbd8c74ac8aab3a586d8aa9a2e259690851
+Subproject commit c58bb46d65aea8913f41f2c395696adce376af79