warm reboot: stop instructions support

When shutting down the host it is good to always stop instructions on
the processors to ensure all activity has halted prior to starting a
shutdown or reboot.

Eventually this service will migrate over to using an ecmd API but until
that is ready, just use pdbg

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I1b81aa16c37124d7671eb84bbbc22cddd0a05e3f
diff --git a/configure.ac b/configure.ac
index ee62a9a..c6584f9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -100,4 +100,5 @@
 AC_CONFIG_FILES([Makefile test/Makefile])
 AC_CONFIG_FILES([pcie-poweroff@.service])
 AC_CONFIG_FILES([xyz.openbmc_project.Control.Host.NMI.service])
+AC_CONFIG_FILES([op-stop-instructions@.service])
 AC_OUTPUT