[8u] RFR: JDK-8253550: JDK-8252395 breaks the build for make STRIP_POLICY=no_strip

[Andrew Hughes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8253550
Webrev: https://cr.openjdk.java.net/~andrew/openjdk8/8253550/webrev.01/

JDK-8252395 broke the legacy way of disabling the stripping of
debuginfo from builds with:

$ make STRIP_POLICY=no_strip

Adding a check on this value gets the build working again.

Ok for 8u-dev?

Thanks,
-- 
Andrew :)

Senior Free Java Software Engineer
OpenJDK Package Owner
Red Hat, Inc. (http://www.redhat.com)

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