Update common-packer to v0.3.0

Change-Id: Ia411ad1e13bfa713eb63ba8da4326f9fa4bc3cc5
Signed-off-by: Vanessa Rene Valderrama <vvalderrama@linuxfoundation.org>

diff --git a/packer/common-packer b/packer/common-packer
index 6d52ef6..8cad102 160000 (submodule)
--- a/packer/common-packer
+++ b/packer/common-packer
@@ -1 +1 @@
-Subproject commit 6d52ef66fa727d6b8c528a99591e997ebfe80c2b
+Subproject commit 8cad102383fdf28db36d05298771e1b16e70cbf4