Update packager.py invocation arguments.

This patch updates the packager.py invocation to reflect the
formal addition of an action command line argument.

BUG=chromium:285856
TEST=Run './build_packages --board=${BOARD} --withdev' locally
CQ-DEPEND=CL:446026

Change-Id: Ifb6332ae1d4b659a84709db924ebc9b90611ae56
Signed-off-by: Prashant Malani <pmalani@google.com>
Reviewed-on: https://chromium-review.googlesource.com/447304
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
1 file changed