Updated git submodules

Project: releng/builder master 6cefa01d7bd2a44559006080c568a59d5b5f5cac

Merge "Install git-review through yum repositories"

Install git-review through yum repositories

Installing through pip as root on the base image  is not
recommend practice since this could impact other deps.

Change-Id: I12f1a4aa1e129a65af43736879ac46f7fe7c3c81
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index 2359085020fea128acd0330ad3fa0a15ef3a9974..6cefa01d7bd2a44559006080c568a59d5b5f5cac 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit 2359085020fea128acd0330ad3fa0a15ef3a9974
+Subproject commit 6cefa01d7bd2a44559006080c568a59d5b5f5cac