Updated git submodules

Project: odlparent master 7c2c1a3cca2ffeb6cc81e8667e132ca00f968985

BUG-9200: upgrade maven-shade-plugin

Version 3.1.0 is required for Java 9, release notes at:
https://mail-archives.apache.org/mod_mbox/maven-announce/201708.mbox/raw/%3Cop.y5d393zfkdkhrr%40desktop-2khsk44.dynamic.ziggo.nl%3E/

Change-Id: I5892cba22d1f50708b219aaee35be5ed2af2d2ec
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
BUG-9200: update failsafe/surefire plugin version

Version 2.20.1 is required to support Java 9, changelogs are at
https://mail-archives.apache.org/mod_mbox/maven-announce/201709.mbox/%3CCAKuVzBTt6gPWkjDS7AcLBKj7C1i9C7CgjRa3s0mQ0S-P%3D3CiiQ%40mail.gmail.com%3E

Change-Id: I08c48631b3ddcec3d36476e759d16f49a1c0a70f
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/docs/submodules/odlparent b/docs/submodules/odlparent
index 5ccc896bde35fb1902cbb4c3f5fb4b86887edba0..7c2c1a3cca2ffeb6cc81e8667e132ca00f968985 160000 (submodule)
--- a/docs/submodules/odlparent
+++ b/docs/submodules/odlparent
@@ -1 +1 @@
-Subproject commit 5ccc896bde35fb1902cbb4c3f5fb4b86887edba0
+Subproject commit 7c2c1a3cca2ffeb6cc81e8667e132ca00f968985