Use api-generator 25 when buiding api-versions.xml

The new api-generator prebuilt fixes a bug where adding
"implements Interface" where Interface is already implemented
by a parent class would be treated as a newly added interface
on this class in the API version the subclass added the implements
statement. (This caused LinkedHashMap to be shown as only adding
the Map interface in API 24.)

Change-Id: I8a9e3971d8be3c4af2a2f68380486e77fe828444
1 file changed