RFR(xs): 8080930: SA changes broke bootcycle-images builds

[Per Liden]

JDK-8080581 introduced two new packages in the SA, but missed to add 
those to make/sa.files. This problem went unnoticed since it's only 
exposed when doing bootcycle-images builds where JDK9's javac no longer 
emits classes for implicit compilations.

This patch makes sure the two new packages are compiled explicitly.

Webrev: http://cr.openjdk.java.net/~pliden/8080930/webrev.0/
Bug: https://bugs.openjdk.java.net/browse/JDK-8080930

Testing: make bootcycle-images now works

cheers,
/Per