AWS example: fix Region merging
AWS example: fix Region merging

[#115356645]

Signed-off-by: Connor Braa <e624947c8d30070ca3f5f65daa9bdf76de21947b@pivotal.io>

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release