Update submodule releng/common-packer

- Pull in Expand rendered image name to include
  sec and ms c0dc5f0
- Pull in Add detailed instructions to setup builder
  7f5a5bf

Change-Id: I1ac59d69076672f370d20db1ccd59ac1d30ab291
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>

diff --git a/packer/common-packer b/packer/common-packer
index 54119a6668c212276639e556ce36ba54c0960f2b..e0319f3a5796486e27933827cb2b0c075c04dd70 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 54119a6668c212276639e556ce36ba54c0960f2b
+Subproject commit e0319f3a5796486e27933827cb2b0c075c04dd70