Update git submodules

* Update docs/submodules/releng/builder from branch 'master'
  to 63ecbdec7e9b945d75d5a4476571dba63a832590
  - Merge "Switch all projects to use new maven-merge job"
  - Switch all projects to use new maven-merge job

    Pull in Maven patch deploy the maven-merge jobs to all projects.
    Also pulls in patch to add '-e' to Maven calls to print full stack
    trace.

    Change-Id: I96750a05f845485ddb7807e18a54e907b00ee9fe
    Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index 2e87f7f4dde62e5341bf155c0c3b0020c56a934e..63ecbdec7e9b945d75d5a4476571dba63a832590 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit 2e87f7f4dde62e5341bf155c0c3b0020c56a934e
+Subproject commit 63ecbdec7e9b945d75d5a4476571dba63a832590