Chore: Update common-packer to the latest v0.9.4

Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: Iea5fd7e0a5831297114defa84f05db1f89063e94

diff --git a/packer/common-packer b/packer/common-packer
index 6485404..3dcae18 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 6485404dda02505f48cef60d9aafd726c3aacfa8
+Subproject commit 3dcae183d810816f31950afbe1fa08fa948e61fe