Review Request: JDK-8170424 install build is broken due to the new location of src.zip

[Mandy Chung]

http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8170424/webrev.00/

This back out the src.zip change in JDK-8169816 to give time to update the 
installer properly.

Mandy