PEL: Validate the message registry during CI

CI will run any files called run-ci.sh it finds in a repo, so
add a script of that name to run process_registry.py against
the message registry to check it for errors.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I35da7c1454696b90ec88b3545992414160ae920b
diff --git a/extensions/openpower-pels/registry/run-ci.sh b/extensions/openpower-pels/registry/run-ci.sh
new file mode 100644
index 0000000..4868f9b
--- /dev/null
+++ b/extensions/openpower-pels/registry/run-ci.sh
@@ -0,0 +1,3 @@
+/usr/bin/env python extensions/openpower-pels/registry/tools/process_registry.py \
+-v -s extensions/openpower-pels/registry/schema/schema.json \
+-r extensions/openpower-pels/registry/message_registry.json