review for build fix to fail when tools are not present in cross build

[David Hill]

Jira: https://javafx-jira.kenai.com/browse/RT-36056
(please coment in the jira)

please review: http://cr.openjdk.java.net/~ddhill/RT-36056 <http://cr.openjdk.java.net/%7Eddhill/RT-36056>

I changed the buldSrc files where there was an obvious error case (grep -i error and looked for print statements).
In each location which was ARM and Android, I changed the print/return, with a fail("message"). The fail method throws a build exception which stops the build process, instead of continuing as we did before.

I did test/check the reported failure in this jira, and found that I "failed" correctly when I removed  the required compiler. I did not check all of the other paths, but applied the same pattern to them.

-- 
David Hill <David.Hill at Oracle.com>
Java Embedded Development

"Why is it drug addicts and computer afficionados are both called users?"
-- Clifford Stoll