Chore: Update common-packer to the latest v0.16.6

Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: Ie0c9bf2047a6cee1846aa2aaaae68e41f01df7f7

diff --git a/packer/common-packer b/packer/common-packer
index d4e1f79..7c33d31 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit d4e1f792fb08af9a269710d0bca7c50b53eb5ec8
+Subproject commit 7c33d312167c606c63f01de3d2cff4f4e313b4af