Update common-packer to v0.7.2

Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
Change-Id: I0ccdbba4bbe8743d67f78889725d08ceb58f325c

diff --git a/packer/common-packer b/packer/common-packer
index 6485404dda02505f48cef60d9aafd726c3aacfa8..cc035619ac1673a5b5ea2f6bfb843eac75ea4a9d 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 6485404dda02505f48cef60d9aafd726c3aacfa8
+Subproject commit cc035619ac1673a5b5ea2f6bfb843eac75ea4a9d