When including /meta/salt.yml from outside of this
formula the yaml can fail if appropriate pillar elements are not
found. Changing syntax to eliminate this. Including the file
above is needed for generating minion orchestration config
for future use with salt orchestration methods
Change-Id: Ia3fb7eee7c6298d294f641232c8c7e8f8b5806af
Related-PROD: PROD-19973
Sergio Cambra
Oleksii Grudev
Tomáš Kukrál
Filip Pytloun
Swann Croiset