add changes to build a static version of libjfxwebkit.a Fox for JDK-8246357
------------- Commit messages: - add changes to build a static version of libjfxwebkit.a Changes: https://git.openjdk.java.net/jfx/pull/245/files Webrev: https://webrevs.openjdk.java.net/jfx/245/webrev.00 Issue: https://bugs.openjdk.java.net/browse/JDK-8246357 Stats: 20 lines in 4 files changed: 17 ins; 0 del; 3 mod Patch: https://git.openjdk.java.net/jfx/pull/245.diff Fetch: git fetch https://git.openjdk.java.net/jfx pull/245/head:pull/245 PR: https://git.openjdk.java.net/jfx/pull/245