RFR(S): JDK-8151991 jvmti diagnostics commands requires INCLUDE_SERVICES

[Dmitry Samersoff]

Everybody,

Please, review small fix.

http://cr.openjdk.java.net/~dsamersoff/JDK-8151991/webrev.01/

New diagnostic command (JVMTI.agent_load) should be guarded by
#if INCLUDE_SERVICES and don't brake minimal VM build.

-Dmitry

-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.