Update global-jjb to 0.57.4,common-packer to 0.7.0

Change-Id: Icfe153e0ed559007827788dbebd6512c1a6799bd
Signed-off-by: Eric Ball <eball@linuxfoundation.org>

diff --git a/global-jjb b/global-jjb
index 5306590..5a6965f 160000 (submodule)
--- a/global-jjb
+++ b/global-jjb
@@ -1 +1 @@
-Subproject commit 53065905f076834d00bfa542c2feeb8553ac177e
+Subproject commit 5a6965f43f220bf6002bfde60897afd216f52ab0

diff --git a/packer/common-packer b/packer/common-packer
index 57648e1..e96974f 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 57648e1600c3c2457900ad4872f26d8f5cd679c7
+Subproject commit e96974fa52edb7d8e7f27d314155bd088255e07d