Review Request: 8006296: build-infra: Unsigned sunmscapi.jar is missing manifest.

[Erik Joelsson]

This fix adds the missing manifest to sunmscapi.jar. This should fix 
javax/crypto/sanity/CheckManifestForRelease.java which is currently 
failing for build-infra builds.

http://cr.openjdk.java.net/~erikj/8006296/webrev.jdk.01/
/Erik