Updated git submodules

Project: releng/builder master 8706a0fd47fd66f6c9a4d62a4830726aeb02f4d5

Update Jenkins minion definition matrix

We switched to using packer from vagrant some time back. This along with
having changed how we're doing labels and instance names means that the
defition matrix for what supports the minion definitions is woefully out
of date.

Change-Id: I13e5e91865a6c55f6283f5648f91af6e6fdd78b5
Signed-off-by: Andrew Grimberg <agrimberg@linuxfoundation.org>
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>

diff --git a/docs/submodules/releng/builder b/docs/submodules/releng/builder
index edc942e8397d10f7b3e8a12cc796af6f3f6b0df7..8706a0fd47fd66f6c9a4d62a4830726aeb02f4d5 160000 (submodule)
--- a/docs/submodules/releng/builder
+++ b/docs/submodules/releng/builder
@@ -1 +1 @@
-Subproject commit edc942e8397d10f7b3e8a12cc796af6f3f6b0df7
+Subproject commit 8706a0fd47fd66f6c9a4d62a4830726aeb02f4d5