Updated git submodules

Project: odlparent master db1f4b258250d47f02f8fb0a9d6ebb6135f4755a

BUG-6712: fix bin/shell's classpath

bin/shell is duplicated from Karaf, but needs ${karaf.version} instead
of ${project.version} to define its classpath.

The correct long-term fix is to drop bin/shell and rely on upstream's
version (https://git.opendaylight.org/gerrit/45546); this patch is
intended for cherry-picking to Boron.

Change-Id: I91658bc9068119aa29d0b3a93d9fce53cfe9d9c6
Signed-off-by: Stephen Kitt <skitt@redhat.com>

diff --git a/docs/submodules/odlparent b/docs/submodules/odlparent
index 1021205767083487bdb1141798ceff191e3c2496..db1f4b258250d47f02f8fb0a9d6ebb6135f4755a 160000 (submodule)
--- a/docs/submodules/odlparent
+++ b/docs/submodules/odlparent
@@ -1 +1 @@
-Subproject commit 1021205767083487bdb1141798ceff191e3c2496
+Subproject commit db1f4b258250d47f02f8fb0a9d6ebb6135f4755a