Update common-packer and global-jjb

Update common-packer to latest HEAD
Update global-jjb to v0.25.2

Issue-ID: CIMAN-33
Change-Id: I4a40f3c450ab370a622f18f4f113f068dabb96f1
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>

diff --git a/global-jjb b/global-jjb
index 75cd590..e907c5a 160000 (submodule)
--- a/global-jjb
+++ b/global-jjb
@@ -1 +1 @@
-Subproject commit 75cd5909da184179c77a55d1909f7159d9eea34b
+Subproject commit e907c5af374f9d7bf3196543d853921697dbf17c

diff --git a/packer/common-packer b/packer/common-packer
index 0029afe..6961de6 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 0029afef91fd71afbd62ad41d09a3c4b05cceaa8
+Subproject commit 6961de60eb1b20375b7b6839f05bff9deed6f621